diff --git a/packages/iris-grid/src/FilterInputField.scss b/packages/iris-grid/src/FilterInputField.scss
index 828eba5bf6..d1a205163c 100644
--- a/packages/iris-grid/src/FilterInputField.scss
+++ b/packages/iris-grid/src/FilterInputField.scss
@@ -1,3 +1,4 @@
+@use './IrisGrid.scss';
 @import '@deephaven/components/scss/custom.scss';
 
 .iris-grid-input-autosized-wrapper {
@@ -21,12 +22,18 @@
     width: auto;
     height: 100%;
     border: $input-border-width solid;
-    padding: 6px 2px 3px 3px;
+    padding: 3px 2px 3px 3px;
     margin-right: 24px; // leave space for filter-button
     overflow: hidden;
     visibility: hidden;
     white-space: nowrap;
     grid-area: 1 / 1;
+    font: IrisGrid.$iris-grid-font;
+    font-feature-settings: IrisGrid.$iris-grid-font-feature-settings;
+
+    @-moz-document url-prefix('') {
+      font-feature-settings: normal;
+    }
   }
 
   .iris-grid-input-field {
@@ -38,6 +45,15 @@
     height: 100%;
     padding: 3px 2px 3px 3px;
     border-radius: 1px;
+    font: IrisGrid.$iris-grid-font;
+    font-feature-settings: IrisGrid.$iris-grid-font-feature-settings;
+
+    @-moz-document url-prefix('') {
+      // Firefox doesn't support font-feature-settings on canvas
+      // so we shouldn't use it here either
+      // https://bugzilla.mozilla.org/show_bug.cgi?id=1580953
+      font-feature-settings: normal;
+    }
 
     &.iris-grid-has-filter {
       // same as filter-bar-expanded-active-bg
diff --git a/packages/iris-grid/src/IrisGrid.scss b/packages/iris-grid/src/IrisGrid.scss
index 652f3bbd43..629504b418 100644
--- a/packages/iris-grid/src/IrisGrid.scss
+++ b/packages/iris-grid/src/IrisGrid.scss
@@ -5,6 +5,7 @@ $iris-grid-bg: $content-bg;
 $iris-grid-font:
   12px fira sans,
   sans-serif;
+$iris-grid-font-feature-settings: 'tnum';
 $table-sidebar-max-width: 320px;
 $table-sidebar-bg: $gray-700;
 $iris-grid-bar-bg: $primary-dark;
@@ -86,7 +87,7 @@ $cell-invalid-box-shadow:
     min-height: 0;
     position: relative;
     font: $iris-grid-font;
-    font-feature-settings: 'tnum';
+    font-feature-settings: $iris-grid-font-feature-settings;
     transition: all $transition-mid;
 
     .grid-settings-button {
diff --git a/tests/table.spec.ts-snapshots/tests-simple-table-operations-quick-filters-with-the-advanced-filters-in-above-test-applied-1-webkit-linux.png b/tests/table.spec.ts-snapshots/tests-simple-table-operations-quick-filters-with-the-advanced-filters-in-above-test-applied-1-webkit-linux.png
index 5df54fe56c..270787211e 100644
Binary files a/tests/table.spec.ts-snapshots/tests-simple-table-operations-quick-filters-with-the-advanced-filters-in-above-test-applied-1-webkit-linux.png and b/tests/table.spec.ts-snapshots/tests-simple-table-operations-quick-filters-with-the-advanced-filters-in-above-test-applied-1-webkit-linux.png differ