diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index 7f2b2724e..45afab89c 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -42,22 +42,22 @@
     "optTitle": {
         "message": "Hover Zoom+ Options",
         "description": "[options] Page title"
-  },
-  "optButtonDisableAllPlugins": {
-    "message": "Disable all",
-    "description": "[options] disable all plugins button label"
-  },
-  "optButtonEnableAllPlugins": {
-    "message": "Enable all",
-    "description": "[options] enable all plugins button label"
+    },
+    "optButtonDisableAllPlugins": {
+        "message": "Disable all",
+        "description": "[options] disable all plugins button label"
+    },
+    "optButtonEnableAllPlugins": {
+        "message": "Enable all",
+        "description": "[options] enable all plugins button label"
     },
     "optButtonSave": {
         "message": "Save",
         "description": "[options] Save button label"
     },
     "optButtonCancel": {
-    	"message": "Cancel",
-	"description": "[options] Cancel button label"
+        "message": "Cancel",
+        "description": "[options] Cancel button label"
     },
     "optButtonReset": {
         "message": "Reset",
@@ -68,7 +68,7 @@
         "description": "[options] Notification after saving options"
     },
     "optCancel": {
-  	"message": "Modification(s) cancelled.",
+        "message": "Modification(s) cancelled.",
         "description": "[options] Notification after cancelling modification(s) to options"
     },
     "optReset": {
@@ -160,12 +160,12 @@
         "description": "[options] Tooltip for extend zoomed images below the mouse cursor option"
     },
     "optHideMouseCursor": {
-    	"message": "Hide mouse cursor after:",
-    	"description": "[options] Hide mouse cursor option"
+        "message": "Hide mouse cursor after:",
+        "description": "[options] Hide mouse cursor option"
     },
     "optHideMouseCursorTooltip": {
-    	"message": "If checked, mouse cursor will be hidden after delay",
-    	"description": "[options] Tooltip for hide mouse cursor option"
+        "message": "If checked, mouse cursor will be hidden after delay",
+        "description": "[options] Tooltip for hide mouse cursor option"
     },
     "optPageActionEnabled": {
         "message": "Show icon in address bar",
@@ -208,12 +208,12 @@
         "description": "[options] Allows you to scroll through albums with the mousewheel but does not change behavior of GFY/Videos"
     },
     "optZoomVideos": {
-    	"message": "Zoom videos",
-    	"description": "[options] Zoom videos option"
+        "message": "Zoom videos",
+        "description": "[options] Zoom videos option"
     },
     "optZoomVideosTooltip": {
-   	 "message": "Supported formats: 3gpp m4v mkv mp4 ogv webm",
-   	 "description": "[options] Tooltip for zoom videos option"
+        "message": "Supported formats: 3gpp m4v mkv mp4 ogv webm",
+        "description": "[options] Tooltip for zoom videos option"
     },
     "optVideoPositionStep": {
         "message": "Use prev/next action keys (or mousewheel) to change video position by",
@@ -407,17 +407,21 @@
         "message": "Advanced options",
         "description": "[options] Page section for advanced options"
     },
+    "optEnableDownloads": {
+        "message": "Allow downloading images using an action key",
+        "description": "[options] Grant browser permission to allow file downloading using an action key"
+    },
     "optAddToHistory": {
         "message": "Add viewed pictures to the browser's history",
         "description": "[options] Add viewed pictures to the browser's history option"
-  },
-  "optAllowHeadersRewriteTooltip": {
-    "message": "Useful to be able to zoom & play content from one site on another site, such as videos",
-    "description": "[options] Tooltip for allow rewrite of headers for HTTP(S) request or response option"
-  },
-  "optAllowHeadersRewrite": {
-    "message": "Allow rewrite of headers for HTTP(S) request or response",
-    "description": "[options] Allow rewrite of headers for HTTP(S) request or response option"
+    },
+    "optAllowHeadersRewriteTooltip": {
+        "message": "Useful to be able to zoom & play content from one site on another site, such as videos",
+        "description": "[options] Tooltip for allow rewrite of headers for HTTP(S) request or response option"
+    },
+    "optAllowHeadersRewrite": {
+        "message": "Allow rewrite of headers for HTTP(S) request or response",
+        "description": "[options] Allow rewrite of headers for HTTP(S) request or response option"
     },
     "optFilterNSFW": {
         "message": "Exclude NSFW images (Reddit only)",
@@ -432,12 +436,12 @@
         "description": "[options] Enable albums support option"
     },
     "optEnableNoFocusMsg": {
-      "message": "Enable Action Keys focus overlay message",
-      "description": "[options] Enable Action Keys focus overlay message option"
+        "message": "Enable Action Keys focus overlay message",
+        "description": "[options] Enable Action Keys focus overlay message option"
     },
     "optEnableNoFocusMsgTooltip": {
-      "message": "Sometimes Action Keys seem to be broken, this usually happens when page has lost focus. If option is checked, a warning message will be displayed (only once).",
-      "description": "[options] Tooltip for enable Action Keys focus overlay message option"
+        "message": "Sometimes Action Keys seem to be broken, this usually happens when page has lost focus. If option is checked, a warning message will be displayed (only once).",
+        "description": "[options] Tooltip for enable Action Keys focus overlay message option"
     },
     "optPicturesOpacity": {
         "message": "Zoomed pictures opacity:",
@@ -524,255 +528,255 @@
         "description": "[options] Tooltip for enable debug option"
     },
     "optEnableDebug": {
-        "message": "Enable debug",
+        "message": "Enable debug logging",
         "description": "[options] Enable debug option"
     },
-  "optSectionSupportedFormats": {
-    "message": "Supported formats",
-    "description": "[options] Page section for supported formats"
-  },
-  "optSupportedImageFormats": {
-    "message": "Images :",
-    "description": "[options] Page section for supported image formats"
-  },
-  "optSupportedVideoFormats": {
-    "message": "Video :",
-    "description": "[options] Page section for supported video formats"
-  },
-  "optPageFAQ": {
-    "message": "FAQ",
-    "description": "[options] Page title for FAQ"
-  },
-  "optSectionFAQ": {
-    "message": "Frequently Asked Questions",
-    "description": "[options] Page section for Frequently Asked Questions"
-  },
-  "optFAQ_Q1": {
-    "message": "I edited some options, but i see no changes.",
-    "description": "[options] FAQ Question 1"
-  },
-  "optFAQ_A1_1": {
-    "message": "After edition, click \"Save\" button",
-    "description": "[options] FAQ Answer 1 part 1"
-  },
-  "optFAQ_A1_2": {
-    "message": "on bottom of Options page",
-    "description": "[options] FAQ Answer 1 part 2"
-  },
-  "optFAQ_A1_3": {
-    "message": "Reload the page (F5)",
-    "description": "[options] FAQ Answer 1 part 3"
-  },
-  "optFAQ_Q2": {
-    "message": "I want to hide the mouse cursor on zoomed image or video.",
-    "description": "[options] FAQ Question 2"
-  },
-  "optFAQ_A2_1": {
-    "message": "In Options -> General -> Delays, activate \"Hide mouse cursor\"",
-    "description": "[options] FAQ Answer 2 part 1"
-  },
-  "optFAQ_SaveAndReload": {
-    "message": "Save and reload the page (F5)",
-    "description": "[options] FAQ Save and reload page"
-  },
-  "optFAQ_Q3": {
-    "message": "I need HoverZoom+ to be active for some sites only.",
-    "description": "[options] FAQ Question 3"
-  },
-  "optFAQ_A3_1": {
-    "message": "E.g. to activate HoverZoom+ on DeviantArt.com & 1X.com:",
-    "description": "[options] FAQ Answer 3 part 1"
-  },
-  "optFAQ_A3_2": {
-    "message": "In Options -> Sites, activate \"Whitelist mode\"",
-    "description": "[options] FAQ Answer 3 part 2"
-  },
-  "optFAQ_A3_3": {
-    "message": "Add DeviantArt.com & 1X.com to list of URLs (not case-sensitive)",
-    "description": "[options] FAQ Answer 3 part 3"
-  },
-  "optFAQ_Q4": {
-    "message": "I want to zoom an image or video to its original size even if larger than screen.",
-    "description": "[options] FAQ Question 4"
-  },
-  "optFAQ_A4_1": {
-    "message": "Hover over an image or video then lock it on screen (default action key: \"L\")",
-    "description": "[options] FAQ Answer 4 part 1"
-  },
-  "optFAQ_A4_2": {
-    "message": "Image or video is now displayed fullsize. You can zoom in or out using mousewheel.",
-    "description": "[options] FAQ Answer 4 part 2"
-  },
-  "optFAQ_Q5": {
-    "message": "Action keys do not work!",
-    "description": "[options] FAQ Question 5"
-  },
-  "optFAQ_A5_1": {
-    "message": "Sometimes action keys seem to be broken, this usually happens when page has lost focus.",
-    "description": "[options] FAQ Answer 5 part 1"
-  },
-  "optFAQ_A5_2": {
-    "message": "Just click anywhere on page to regain focus.",
-    "description": "[options] FAQ Answer 5 part 2"
-  },
-  "optFAQ_A5_3": {
-    "message": "In Options -> Advanced, you can activate \"Enable Action Keys focus overlay message\", so you'll get a warning message when focus is lost.",
-    "description": "[options] FAQ Answer 5 part 3"
-  },
-  "optFAQ_Q6": {
-    "message": "Some videos do not play when opened from sites other than original ones.",
-    "description": "[options] FAQ Question 6"
-  },
-  "optFAQ_A6_1": {
-    "message": "e.g: Dailymotion videos play in dailymotion.com, but not in Google search results.",
-    "description": "[options] FAQ Answer 6 part 1"
-  },
-  "optFAQ_A6_2": {
-    "message": "This is due to CORS restrictions, to lift them:",
-    "description": "[options] FAQ Answer 6 part 2"
-  },
-  "optFAQ_A6_3": {
-    "message": "In Options -> Advanced, activate \"Allow rewrite of headers for HTTP(S) request or response\"",
-    "description": "[options] FAQ Answer 6 part 3"
-  },
-  "optPixelsUnitName": {
-    "message": "pixels",
-    "description": "[options] Unit name (pixels)"
-  },
-  "optActionKeyTitle": {
-    "message": "Activate HoverZoom+",
-    "description": "[options] Action key title"
-  },
-  "optActionKeyDescription": {
-    "message": "If a key is set, HoverZoom4+ will be active only when this key is held down.",
-    "description": "[options] Action key description"
-  },
-  "optToggleKeyTitle": {
-    "message": "Toggle HoverZoom+",
-    "description": "[options] Action key title"
-  },
-  "optToggleKeyDescription": {
-    "message": "Enable/disable HoverZoom+",
-    "description": "[options] Action key description"
-  },
-  "optCloseKeyTitle": {
-    "message": "Close image",
-    "description": "[options] Action key title"
-  },
-  "optCloseKeyDescription": {
-    "message": "Press this key to close zoomed image or video.",
-    "description": "[options] Action key description"
-  },
-  "optHideKeyTitle": {
-    "message": "Hide image",
-    "description": "[options] Action key title"
-  },
-  "optHideKeyDescription": {
-    "message": "Holding this key down hides the zoomed image or video. Use it when the picture hides elements that are also displayed on mouseover.",
-    "description": "[options] Action key description"
-  },
-  "optOpenImageInWindowKeyTitle": {
-    "message": "Open image in a new window",
-    "description": "[options] Action key title"
-  },
-  "optOpenImageInWindowKeyDescription": {
-    "message": "Press this key to open the image or video you are currently viewing in a new window. Press this key again to close the window.",
-    "description": "[options] Action key description"
-  },
-  "optOpenImageInTabKeyTitle": {
-    "message": "Open image in a new tab",
-    "description": "[options] Action key title"
-  },
-  "optOpenImageInTabKeyDescription": {
-    "message": "Press this key to open the image or video you are currently viewing in a new tab. Press this key again to close the tab. Shift+key opens the image in a background tab.",
-    "description": "[options] Action key description"
-  },
-  "optLockImageKeyTitle": {
-    "message": "Lock image on screen",
-    "description": "[options] Action key title"
-  },
-  "optLockImageKeyDescription": {
-    "message": "Press this key to lock the image or video in the center of the page, allowing you to zoom and pan around. Press close key or click outside the image to unlock.",
-    "description": "[options] Action key description"
-  },
-  "optSaveImageKeyTitle": {
-    "message": "Save image",
-    "description": "[options] Action key title"
-  },
-  "optSaveImageKeyDescription": {
-    "message": "Press this key to save the image or video you are currently viewing.",
-    "description": "[options] Action key description"
-  },
-  "optFullZoomKeyTitle": {
-    "message": "Activate full zoom",
-    "description": "[options] Action key title"
-  },
-  "optFullZoomKeyDescription": {
-    "message": "When this key is held down, the picture is displayed using all available space. Useful for high resolution pictures only.",
-    "description": "[options] Action key description"
-  },
-  "optCopyImageKeyTitle": {
-    "message": "Copy image to clipboard",
-    "description": "[options] Action key title"
-  },
-  "optCopyImageKeyDescription": {
-    "message": "When this key is pressed, the image is copied into the clipboard.",
-    "description": "[options] Action key description"
-  },
-  "optCopyImageUrlKeyTitle": {
-    "message": "Copy image URL to clipboard",
-    "description": "[options] Action key title"
-  },
-  "optCopyImageUrlKeyDescription": {
-    "message": "When this key is pressed, the image's or video's URL is copied into the clipboard.",
-    "description": "[options] Action key description"
-  },
-  "optPrevImgKeyTitle": {
-    "message": "View previous image in a gallery",
-    "description": "[options] Action key title"
-  },
-  "optPrevImgKeyDescription": {
-    "message": "Press this key to view the previous image in a gallery.",
-    "description": "[options] Action key description"
-  },
-  "optNextImgKeyTitle": {
-    "message": "View next image in a gallery",
-    "description": "[options] Action key title"
-  },
-  "optNextImgKeyDescription": {
-    "message": "Press this key to view the next image in a gallery.",
-    "description": "[options] Action key description"
-  },
-  "optFlipImageKeyTitle": {
-    "message": "Flip image",
-    "description": "[options] Action key title"
-  },
-  "optFlipImageKeyDescription": {
-    "message": "Press this key to alternately flip image vertically and horizontally. Handy for reading texts & logos in mirrored images or videos.",
-    "description": "[options] Action key description"
-  },
-  "optFooterSourceCode": {
-    "message": "Source code",
-    "description": "[options] Source code link in page footer"
-  },
-  "optFooterChangelog": {
-     "message": "Changelog",
-     "description": "[options] Changelog link in page footer"
-  },
-  "optFooterReportIssue": {
-    "message": "Report a bug",
-    "description": "[options] Report a bug link in page footer"
-  },
-  "optFooterVersionCopyright": {
-    "message": "Version $1 (last update: $2) - © 2014-2022 Oleg Anashkin",
-    "description": "[options] Copyright and version number in page footer"
-  },
-  "msgClickPageToPlayVideo": {
-    "message": "click anywhere on the page then hover again",
-    "description": "User must interact with the document first to play video: https://goo.gl/xX8pDD"
-  },
-  "msgClickPageToActivateActionKeys": {
-    "message": "click anywhere on the page to activate Action Keys",
-    "description": "Action keys are active only if page is focused"
-  }
+    "optSectionSupportedFormats": {
+        "message": "Supported formats",
+        "description": "[options] Page section for supported formats"
+    },
+    "optSupportedImageFormats": {
+        "message": "Images :",
+        "description": "[options] Page section for supported image formats"
+    },
+    "optSupportedVideoFormats": {
+        "message": "Video :",
+        "description": "[options] Page section for supported video formats"
+    },
+    "optPageFAQ": {
+        "message": "FAQ",
+        "description": "[options] Page title for FAQ"
+    },
+    "optSectionFAQ": {
+        "message": "Frequently Asked Questions",
+        "description": "[options] Page section for Frequently Asked Questions"
+    },
+    "optFAQ_Q1": {
+        "message": "I edited some options, but i see no changes.",
+        "description": "[options] FAQ Question 1"
+    },
+    "optFAQ_A1_1": {
+        "message": "After edition, click \"Save\" button",
+        "description": "[options] FAQ Answer 1 part 1"
+    },
+    "optFAQ_A1_2": {
+        "message": "on bottom of Options page",
+        "description": "[options] FAQ Answer 1 part 2"
+    },
+    "optFAQ_A1_3": {
+        "message": "Reload the page (F5)",
+        "description": "[options] FAQ Answer 1 part 3"
+    },
+    "optFAQ_Q2": {
+        "message": "I want to hide the mouse cursor on zoomed image or video.",
+        "description": "[options] FAQ Question 2"
+    },
+    "optFAQ_A2_1": {
+        "message": "In Options -> General -> Delays, activate \"Hide mouse cursor\"",
+        "description": "[options] FAQ Answer 2 part 1"
+    },
+    "optFAQ_SaveAndReload": {
+        "message": "Save and reload the page (F5)",
+        "description": "[options] FAQ Save and reload page"
+    },
+    "optFAQ_Q3": {
+        "message": "I need HoverZoom+ to be active for some sites only.",
+        "description": "[options] FAQ Question 3"
+    },
+    "optFAQ_A3_1": {
+        "message": "E.g. to activate HoverZoom+ on DeviantArt.com & 1X.com:",
+        "description": "[options] FAQ Answer 3 part 1"
+    },
+    "optFAQ_A3_2": {
+        "message": "In Options -> Sites, activate \"Whitelist mode\"",
+        "description": "[options] FAQ Answer 3 part 2"
+    },
+    "optFAQ_A3_3": {
+        "message": "Add DeviantArt.com & 1X.com to list of URLs (not case-sensitive)",
+        "description": "[options] FAQ Answer 3 part 3"
+    },
+    "optFAQ_Q4": {
+        "message": "I want to zoom an image or video to its original size even if larger than screen.",
+        "description": "[options] FAQ Question 4"
+    },
+    "optFAQ_A4_1": {
+        "message": "Hover over an image or video then lock it on screen (default action key: \"L\")",
+        "description": "[options] FAQ Answer 4 part 1"
+    },
+    "optFAQ_A4_2": {
+        "message": "Image or video is now displayed fullsize. You can zoom in or out using mousewheel.",
+        "description": "[options] FAQ Answer 4 part 2"
+    },
+    "optFAQ_Q5": {
+        "message": "Action keys do not work!",
+        "description": "[options] FAQ Question 5"
+    },
+    "optFAQ_A5_1": {
+        "message": "Sometimes action keys seem to be broken, this usually happens when page has lost focus.",
+        "description": "[options] FAQ Answer 5 part 1"
+    },
+    "optFAQ_A5_2": {
+        "message": "Just click anywhere on page to regain focus.",
+        "description": "[options] FAQ Answer 5 part 2"
+    },
+    "optFAQ_A5_3": {
+        "message": "In Options -> Advanced, you can activate \"Enable Action Keys focus overlay message\", so you'll get a warning message when focus is lost.",
+        "description": "[options] FAQ Answer 5 part 3"
+    },
+    "optFAQ_Q6": {
+        "message": "Some videos do not play when opened from sites other than original ones.",
+        "description": "[options] FAQ Question 6"
+    },
+    "optFAQ_A6_1": {
+        "message": "e.g: Dailymotion videos play in dailymotion.com, but not in Google search results.",
+        "description": "[options] FAQ Answer 6 part 1"
+    },
+    "optFAQ_A6_2": {
+        "message": "This is due to CORS restrictions, to lift them:",
+        "description": "[options] FAQ Answer 6 part 2"
+    },
+    "optFAQ_A6_3": {
+        "message": "In Options -> Advanced, activate \"Allow rewrite of headers for HTTP(S) request or response\"",
+        "description": "[options] FAQ Answer 6 part 3"
+    },
+    "optPixelsUnitName": {
+        "message": "pixels",
+        "description": "[options] Unit name (pixels)"
+    },
+    "optActionKeyTitle": {
+        "message": "Activate HoverZoom+",
+        "description": "[options] Action key title"
+    },
+    "optActionKeyDescription": {
+        "message": "If a key is set, HoverZoom4+ will be active only when this key is held down.",
+        "description": "[options] Action key description"
+    },
+    "optToggleKeyTitle": {
+        "message": "Toggle HoverZoom+",
+        "description": "[options] Action key title"
+    },
+    "optToggleKeyDescription": {
+        "message": "Enable/disable HoverZoom+",
+        "description": "[options] Action key description"
+    },
+    "optCloseKeyTitle": {
+        "message": "Close image",
+        "description": "[options] Action key title"
+    },
+    "optCloseKeyDescription": {
+        "message": "Press this key to close zoomed image or video.",
+        "description": "[options] Action key description"
+    },
+    "optHideKeyTitle": {
+        "message": "Hide image",
+        "description": "[options] Action key title"
+    },
+    "optHideKeyDescription": {
+        "message": "Holding this key down hides the zoomed image or video. Use it when the picture hides elements that are also displayed on mouseover.",
+        "description": "[options] Action key description"
+    },
+    "optOpenImageInWindowKeyTitle": {
+        "message": "Open image in a new window",
+        "description": "[options] Action key title"
+    },
+    "optOpenImageInWindowKeyDescription": {
+        "message": "Press this key to open the image or video you are currently viewing in a new window. Press this key again to close the window.",
+        "description": "[options] Action key description"
+    },
+    "optOpenImageInTabKeyTitle": {
+        "message": "Open image in a new tab",
+        "description": "[options] Action key title"
+    },
+    "optOpenImageInTabKeyDescription": {
+        "message": "Press this key to open the image or video you are currently viewing in a new tab. Press this key again to close the tab. Shift+key opens the image in a background tab.",
+        "description": "[options] Action key description"
+    },
+    "optLockImageKeyTitle": {
+        "message": "Lock image on screen",
+        "description": "[options] Action key title"
+    },
+    "optLockImageKeyDescription": {
+        "message": "Press this key to lock the image or video in the center of the page, allowing you to zoom and pan around. Press close key or click outside the image to unlock.",
+        "description": "[options] Action key description"
+    },
+    "optSaveImageKeyTitle": {
+        "message": "Save image",
+        "description": "[options] Action key title"
+    },
+    "optSaveImageKeyDescription": {
+        "message": "Press this key to save the image or video you are currently viewing.",
+        "description": "[options] Action key description"
+    },
+    "optFullZoomKeyTitle": {
+        "message": "Activate full zoom",
+        "description": "[options] Action key title"
+    },
+    "optFullZoomKeyDescription": {
+        "message": "When this key is held down, the picture is displayed using all available space. Useful for high resolution pictures only.",
+        "description": "[options] Action key description"
+    },
+    "optCopyImageKeyTitle": {
+        "message": "Copy image to clipboard",
+        "description": "[options] Action key title"
+    },
+    "optCopyImageKeyDescription": {
+        "message": "When this key is pressed, the image is copied into the clipboard.",
+        "description": "[options] Action key description"
+    },
+    "optCopyImageUrlKeyTitle": {
+        "message": "Copy image URL to clipboard",
+        "description": "[options] Action key title"
+    },
+    "optCopyImageUrlKeyDescription": {
+        "message": "When this key is pressed, the image's or video's URL is copied into the clipboard.",
+        "description": "[options] Action key description"
+    },
+    "optPrevImgKeyTitle": {
+        "message": "View previous image in a gallery",
+        "description": "[options] Action key title"
+    },
+    "optPrevImgKeyDescription": {
+        "message": "Press this key to view the previous image in a gallery.",
+        "description": "[options] Action key description"
+    },
+    "optNextImgKeyTitle": {
+        "message": "View next image in a gallery",
+        "description": "[options] Action key title"
+    },
+    "optNextImgKeyDescription": {
+        "message": "Press this key to view the next image in a gallery.",
+        "description": "[options] Action key description"
+    },
+    "optFlipImageKeyTitle": {
+        "message": "Flip image",
+        "description": "[options] Action key title"
+    },
+    "optFlipImageKeyDescription": {
+        "message": "Press this key to alternately flip image vertically and horizontally. Handy for reading texts & logos in mirrored images or videos.",
+        "description": "[options] Action key description"
+    },
+    "optFooterSourceCode": {
+        "message": "Source code",
+        "description": "[options] Source code link in page footer"
+    },
+    "optFooterChangelog": {
+        "message": "Changelog",
+        "description": "[options] Changelog link in page footer"
+    },
+    "optFooterReportIssue": {
+        "message": "Report a bug",
+        "description": "[options] Report a bug link in page footer"
+    },
+    "optFooterVersionCopyright": {
+        "message": "Version $1 (last update: $2) - © 2014-2022 Oleg Anashkin",
+        "description": "[options] Copyright and version number in page footer"
+    },
+    "msgClickPageToPlayVideo": {
+        "message": "click anywhere on the page then hover again",
+        "description": "User must interact with the document first to play video: https://goo.gl/xX8pDD"
+    },
+    "msgClickPageToActivateActionKeys": {
+        "message": "click anywhere on the page to activate Action Keys",
+        "description": "Action keys are active only if page is focused"
+    }
 }
diff --git a/html/options.html b/html/options.html
index 7869fabc5..bf64c6c18 100644
--- a/html/options.html
+++ b/html/options.html
@@ -324,6 +324,12 @@ <h1 class="ten columns text-center" data-i18n="optTitle"></h1>
                         <fieldset>
                             <legend data-i18n="optSectionAdvanced"></legend>
                             <ul>
+                                <li class="field">
+                                    <label class="checkbox" for="chkEnableDownloads">
+                                        <input type="checkbox" id="chkEnableDownloads"><span></span>
+                                        <div style="display:inline" data-i18n="optEnableDownloads"></div>
+                                    </label>
+                                </li>
                                 <li class="field">
                                     <label class="checkbox" for="chkAddToHistory">
                                         <input type="checkbox" id="chkAddToHistory"><span></span>
diff --git a/js/background.js b/js/background.js
index 5537f2e0a..bb43131d6 100644
--- a/js/background.js
+++ b/js/background.js
@@ -35,16 +35,21 @@ function ajaxRequest(request, callback) {
 function onMessage(message, sender, callback) {
     switch (message.action) {
         case 'downloadFile':
-            chrome.permissions.request({
-                permissions: ['downloads']
-            }, function (granted) {
-                if (granted) {
-                    chrome.downloads.download({url: message.url, filename: message.filename, conflictAction: message.conflictAction, saveAs: false});
-                    return true;
-                } else {
-                    return false;
-                }
-            });
+            if (options.enableDownloads) {
+                chrome.downloads.download({url: message.url, filename: message.filename, conflictAction: message.conflictAction});
+                return true;
+            } else {
+                chrome.permissions.request({
+                    permissions: ['downloads']
+                }, function (granted) {
+                    if (granted) {
+                        chrome.downloads.download({url: message.url, filename: message.filename, conflictAction: message.conflictAction});
+                        return true;
+                    } else {
+                        return false;
+                    }
+                });
+            }
         case 'ajaxGet':
             ajaxRequest({url:message.url, response:message.response, method:'GET', headers:message.headers}, callback);
             return true;
@@ -149,6 +154,8 @@ function init() {
 
 // Add or remove web request listeners
 function manageHeadersRewrite() {
+    if (!chrome.webRequest) return; // not supported on Firefox
+
     if (options.allowHeadersRewrite) {
         // check that permissions are granted, otherwise remove listeners
         chrome.permissions.contains({permissions: ['webRequest','webRequestBlocking']}, function (granted) {
@@ -268,9 +275,9 @@ function updateHeaders(headers, settings) {
 // so they can be edited on-the-fly to enable API calls from plug-ins
 // https://developer.chrome.com/docs/extensions/reference/webRequest/
 function addWebRequestListeners() {
-    if (! chrome.webRequest.onBeforeSendHeaders.hasListeners())
+    if (!chrome.webRequest.onBeforeSendHeaders.hasListeners())
         chrome.webRequest.onBeforeSendHeaders.addListener(updateRequestHeaders, { urls : ["<all_urls>"] }, ["blocking", "requestHeaders", "extraHeaders"]);
-    if (! chrome.webRequest.onHeadersReceived.hasListeners())
+    if (!chrome.webRequest.onHeadersReceived.hasListeners())
         chrome.webRequest.onHeadersReceived.addListener(updateResponseHeaders, { urls : ["<all_urls>"] }, ["blocking", "responseHeaders", "extraHeaders"]);
 }
 
diff --git a/js/common.js b/js/common.js
index 7b31e4413..9cc67ae35 100644
--- a/js/common.js
+++ b/js/common.js
@@ -10,6 +10,7 @@ var factorySettings = {
     showHighRes : true,
     galleriesMouseWheel : true,
     disableMouseWheelForVideo : false,
+    enableDownloads : false,
     addToHistory : false,
     allowHeadersRewrite : false,
     alwaysPreload : false,
@@ -92,8 +93,12 @@ function loadOptions() {
     options.showHighRes = options.hasOwnProperty('showHighRes') ? options.showHighRes : factorySettings.showHighRes;
     options.galleriesMouseWheel = options.hasOwnProperty('galleriesMouseWheel') ? options.galleriesMouseWheel : factorySettings.galleriesMouseWheel;
     options.disableMouseWheelForVideo = options.hasOwnProperty('disableMouseWheelForVideo') ? options.disableMouseWheelForVideo : factorySettings.disableMouseWheelForVideo;
+
+    // These options are directly associated with browser permissions. Changing pemissions manually will make them out of sync.
+    options.enableDownloads = options.hasOwnProperty('enableDownloads') ? options.enableDownloads : factorySettings.enableDownloads;
     options.addToHistory = options.hasOwnProperty('addToHistory') ? options.addToHistory : factorySettings.addToHistory;
     options.allowHeadersRewrite = options.hasOwnProperty('allowHeadersRewrite') ? options.allowHeadersRewrite : factorySettings.allowHeadersRewrite;
+
     options.alwaysPreload = options.hasOwnProperty('alwaysPreload') ? options.alwaysPreload : factorySettings.alwaysPreload;
     options.displayDelay = options.hasOwnProperty('displayDelay') ? options.displayDelay : factorySettings.displayDelay;
     options.displayDelayVideo = options.hasOwnProperty('displayDelayVideo') ? options.displayDelayVideo : factorySettings.displayDelayVideo;
diff --git a/js/hoverzoom.js b/js/hoverzoom.js
index 61353cabd..d1f34d57f 100644
--- a/js/hoverzoom.js
+++ b/js/hoverzoom.js
@@ -1998,7 +1998,7 @@ var hoverZoom = {
 
             $(document).contextmenu(documentContextMenu);
             $(document).mousemove(documentMouseMove).mousedown(documentMouseDown).mouseleave(cancelImageLoading);
-            $(document).keydown(documentOnKeyDown).keyup(documentOnKeyUp);
+            $(document).keydown(documentOnKeyDown).keyup(documentOnKeyUp).keypress(documentOnKeyPress);
             if (options.galleriesMouseWheel) {
                 window.addEventListener('wheel', documentOnMouseWheel, {passive: false});
             }
@@ -2116,99 +2116,112 @@ var hoverZoom = {
                     return false;
                 }
             }
+        }
+
+        function changeVideoPosition(amount) {
+            var video = hz.hzImg.find('video').get(0);
+            if (video && video.currentTime) {
+                video.currentTime = Math.max(video.currentTime + amount, 0);
+            }
+        }
+
+        function documentOnKeyUp(event) {
+            // Action key (zoom image) is released
+            if (event.which == options.actionKey) {
+                actionKeyDown = false;
+                closeHoverZoomImg();
+            }
+            // Full zoom key is released
+            if (event.which == options.fullZoomKey) {
+                fullZoomKeyDown = false;
+                $(this).mousemove();
+            }
+            // Hide key is released
+            if (event.which == options.hideKey) {
+                hideKeyDown = false;
+                if (imgFullSize) {
+                    hz.hzImg.show();
+                    playMedias();
+                }
+                $(this).mousemove();
+            }
+        }
+
+        function documentOnKeyPress(event) {
+            event = event.originalEvent;
+            // Skips if an input controlled is focused
+            if (event.target && ['INPUT','TEXTAREA','SELECT'].indexOf(event.target.tagName) > -1) {
+                return;
+            }
+
+            let keyCode = event.which;
+            if (keyCode >= 97 && keyCode <= 122) // Translate lowercase key codes into uppercase key codes
+                keyCode = keyCode - 32;
+
             // the following keys are processed only if an image is displayed
             if (imgFullSize) {
                 // "Open image in a new window" key
-                if (event.which == options.openImageInWindowKey) {
+                if (keyCode === options.openImageInWindowKey) {
                     if (imgDetails.video) openVideoInWindow();
                     else openImageInWindow();
                     return false;
                 }
                 // "Open image in a new tab" key
-                if (event.which == options.openImageInTabKey) {
+                if (keyCode === options.openImageInTabKey) {
                     if (imgDetails.video) openVideoInTab(event.shiftKey);
                     else openImageInTab(event.shiftKey);
                     return false;
                 }
                 // "Lock image" key
-                if (event.which == options.lockImageKey) {
+                if (keyCode === options.lockImageKey) {
                     if (!imageLocked) lockImage();
                     return false;
                 }
                 // "Save image" key
-                if (event.which == options.saveImageKey) {
+                if (keyCode === options.saveImageKey) {
                     saveImage();
                     return false;
                 }
                 // "Copy image" key
                 if (isChromiumBased) {
-                    if (event.which == options.copyImageKey) {
+                    if (keyCode === options.copyImageKey) {
                         copyImage();
                         return false;
                     }
                 }
                 // "Copy image url" key
-                if (event.which == options.copyImageUrlKey) {
+                if (keyCode === options.copyImageUrlKey) {
                     copyLink();
                     return false;
                 }
-                // Cancels event if an action key is held down (auto repeat may trigger additional events)
-                if (event.which == options.actionKey ||
-                    event.which == options.fullZoomKey ||
-                    event.which == options.hideKey) {
+                // Cancels event if an action key is held down (auto-repeat may trigger additional events)
+                if (keyCode === options.actionKey ||
+                    keyCode === options.fullZoomKey ||
+                    keyCode === options.hideKey) {
                     return false;
                 }
                 // "Previous image" key
-                if (event.which == options.prevImgKey) {
+                if (keyCode === options.prevImgKey) {
                     var linkData = hz.currentLink.data();
                     if (linkData.hoverZoomGallerySrc && linkData.hoverZoomGallerySrc.length > 1) rotateGalleryImg(-1);
                     else changeVideoPosition(-parseInt(options.videoPositionStep));
                     return false;
                 }
                 // "Next image" key
-                if (event.which == options.nextImgKey) {
+                if (keyCode === options.nextImgKey) {
                     var linkData = hz.currentLink.data();
                     if (linkData.hoverZoomGallerySrc && linkData.hoverZoomGallerySrc.length > 1) rotateGalleryImg(1);
                     else changeVideoPosition(parseInt(options.videoPositionStep));
                     return false;
                 }
                 // "Flip image" key
-                if (event.which == options.flipImageKey) {
+                if (keyCode === options.flipImageKey) {
                     flipImage();
                     return false;
                 }
             }
         }
 
-        function changeVideoPosition(amount) {
-            var video = hz.hzImg.find('video').get(0);
-            if (video && video.currentTime) {
-                video.currentTime = Math.max(video.currentTime + amount, 0);
-            }
-        }
-
-        function documentOnKeyUp(event) {
-            // Action key (zoom image) is released
-            if (event.which == options.actionKey) {
-                actionKeyDown = false;
-                closeHoverZoomImg();
-            }
-            // Full zoom key is released
-            if (event.which == options.fullZoomKey) {
-                fullZoomKeyDown = false;
-                $(this).mousemove();
-            }
-            // Hide key is released
-            if (event.which == options.hideKey) {
-                hideKeyDown = false;
-                if (imgFullSize) {
-                    hz.hzImg.show();
-                    playMedias();
-                }
-                $(this).mousemove();
-            }
-        }
-
         // TODO: Flash is basically dead. Should this be deleted?
         function fixFlash() {
             if (flashFixDomains.indexOf(location.host) == -1) {
diff --git a/js/options.js b/js/options.js
index d05f616da..3b0f70073 100644
--- a/js/options.js
+++ b/js/options.js
@@ -119,8 +119,10 @@ function saveOptions() {
         options[key] = parseInt($('#sel' + id).val());
     });
 
+    options.enableDownloads = $('#chkEnableDownloads')[0].checked;
     options.addToHistory = $('#chkAddToHistory')[0].checked;
     options.allowHeadersRewrite = $('#chkAllowHeadersRewrite')[0].checked;
+
     options.filterNSFW = $('#chkFilterNSFW')[0].checked;
     options.alwaysPreload = $('#chkAlwaysPreload')[0].checked;
     options.enableGalleries = $('#chkEnableGalleries')[0].checked;
@@ -147,6 +149,13 @@ function saveOptions() {
     return false;
 }
 
+function savePermissionOptions() {
+    options.enableDownloads = $('#chkEnableDownloads')[0].checked;
+    options.addToHistory = $('#chkAddToHistory')[0].checked;
+    options.allowHeadersRewrite = $('#chkAllowHeadersRewrite')[0].checked;
+    localStorage.options = JSON.stringify(options);
+}
+
 // Restores options from factory settings
 function restoreOptionsFromFactorySettings() {
     restoreOptions(Object.assign({}, factorySettings));
@@ -221,8 +230,10 @@ function restoreOptions(optionsFromFactorySettings) {
         $('#sel' + id).val(options[key]);
     });
 
+    $('#chkEnableDownloads').trigger(options.enableDownloads ? 'gumby.check' : 'gumby.uncheck');
     $('#chkAddToHistory').trigger(options.addToHistory ? 'gumby.check' : 'gumby.uncheck');
     $('#chkAllowHeadersRewrite').trigger(options.allowHeadersRewrite ? 'gumby.check' : 'gumby.uncheck');
+
     $('#chkFilterNSFW').trigger(options.filterNSFW ? 'gumby.check' : 'gumby.uncheck');
     $('#chkAlwaysPreload').trigger(options.alwaysPreload ? 'gumby.check' : 'gumby.uncheck');
     $('#chkEnableGalleries').trigger(options.enableGalleries ? 'gumby.check' : 'gumby.uncheck');
@@ -350,34 +361,69 @@ function chkWhiteListModeOnChange() {
     $('#lblToggle').text(chrome.i18n.getMessage($('#chkWhiteListMode')[0].checked ? "optSectionSitesEnabled" : "optSectionSitesDisabled"));
 }
 
+function chkEnableDownloadsOnChange() {
+    if ($('#chkEnableDownloads')[0].checked) {
+        chrome.permissions.request({permissions: ['downloads']}, function (granted) {
+            if (granted === false) {
+                $('#chkEnableDownloads').trigger('gumby.uncheck');
+            } else {
+                savePermissionOptions();
+            }
+        });
+    } else {
+        chrome.permissions.remove({permissions: ['downloads']}, function (removed) {
+            if (removed === false) {
+                $('#chkEnableDownloads').trigger('gumby.check');
+            } else {
+                savePermissionOptions();
+            }
+        });
+    }
+}
+
+function initEnableDownloads() {
+    $('#chkEnableDownloads').parent().on('gumby.onChange', chkEnableDownloadsOnChange);
+}
+
 function chkAddToHistoryModeOnChange() {
     if ($('#chkAddToHistory')[0].checked) {
         chrome.permissions.request({permissions: ['history']}, function (granted) {
-            if (!granted) {
+            if (granted === false) {
                 $('#chkAddToHistory').trigger('gumby.uncheck');
+            } else {
+                savePermissionOptions();
+            }
+        });
+    } else {
+        chrome.permissions.remove({permissions: ['history']}, function (removed) {
+            if (removed === false) {
+                $('#chkAddToHistory').trigger('gumby.check');
+            } else {
+                savePermissionOptions();
             }
         });
     }
 }
 
 function initAddToHistory() {
-    chrome.permissions.contains({permissions: ['history']}, function (granted) {
-        if (!granted) {
-            $('#chkAddToHistory').parent().on('gumby.onChange', chkAddToHistoryModeOnChange);
-        }
-    });
+    $('#chkAddToHistory').parent().on('gumby.onChange', chkAddToHistoryModeOnChange);
 }
 
 function chkAllowHeadersRewriteOnChange() {
     if ($('#chkAllowHeadersRewrite')[0].checked) {
-        chrome.permissions.contains({permissions: ['webRequest','webRequestBlocking']}, function (granted) { 
-            if (!granted) {
-                // ask user for permissions
-                chrome.permissions.request({permissions: ['webRequest','webRequestBlocking']}, function (granted) {
-                    if (!granted) {
-                        $('#chkAddToHistory').trigger('gumby.uncheck');
-                    }
-                });
+        chrome.permissions.request({permissions: ['webRequest','webRequestBlocking']}, function (granted) {
+            if (granted === false) {
+                $('#chkAllowHeadersRewrite').trigger('gumby.uncheck');
+            } else {
+                savePermissionOptions();
+            }
+        });
+    } else {
+        chrome.permissions.remove({permissions: ['webRequest','webRequestBlocking']}, function (removed) {
+            if (removed === false) {
+                $('#chkAllowHeadersRewrite').trigger('gumby.check');
+            } else {
+                savePermissionOptions();
             }
         });
     }
@@ -580,6 +626,7 @@ $(function () {
     initActionKeys();
     i18n();
     chkWhiteListModeOnChange();
+    initEnableDownloads();
     initAddToHistory();
     initAllowHeadersRewrite();
     $("#version").text(chrome.i18n.getMessage("optFooterVersionCopyright", [chrome.runtime.getManifest().version, localStorage['HoverZoomLastUpdate'] ? localStorage['HoverZoomLastUpdate'] : localStorage['HoverZoomInstallation']]));