Komodo Edit is a fast and free multi-language code editor. Written in JS, Python, C++ and based on the Mozilla platform.

DEPRECATED: Multiplatform GUI Prototyping/Wireframing

live XUL editor : with seamonkey open this --->

UXP - Unified XUL Platform

a frontend for Fudan eLearning, with many new feature added.

Building AppImages for XULRunner

AdBlock for GeckoFX WebBrowser. Custom keyword/domain support + EasyList, EasyPrivacy & AdGuard blocklists

A #thaiWitter client developed using xulrunner

Catalog of classic Firefox add-ons created before WebExtensions apocalypse