Community developed modules

Martin Giger edited this page Feb 25, 2015 · 78 revisions

This page lists some the older community-developed libraries.

For a new list check for the "jetpack" tag on

Browser UI

Web APIs

Browser Internals

Async JavaScript APIs


Dev tools



  • DirectoryWatcher Polls a directory, notifies listeners of events like file added, deleted, changed, etc.
  • Cookie Manager Provides access to nsICookieManager and nsICookieManager2
  • Menu menu docs
  • Dominant Color Given an image URI, find the most representative color for that image based on the frequency of each color, see here