Chrome List - Browse all the chrome packages registered with Firefox in a convenient tree view. Console² - Replaces the JavaScript Console. Display errors filtered by type (Errors, Warnings, Messages), language (JavaScript, CSS, XML) and context (Chrome, Content). Extension Developer's Extension - Meta-extension for developers. Allows test JavaScript, prototyping XUL layouts and building XPI packages. Leak Monitor - Detects one very specific type of leak in web sites and chrome JavaScript. MR Tech Local Install - Provides tools to install and manage extensions and themes locally. Nightly Tester Tools - Adds a few extras useful to those that regularly test nightly builds of Firefox, Thunderbird, Sunbird and Toolkit Seamonkey (Suiterunner). Features: Extension compatibility fixing, titlebar customization, build ID retrieval, screen-shots, talk-back information and leak log analysis. Update Channel Selector - Allows you to change the update channel from where your application receives updates. Chromebug - Chromebug is the Firebug code adapted for XUL applications. It is the debugger that Firebug developers use to develop Firebug. UxU - UnitTest.XUL - ClearCode - Testing framework for Mozilla add-ons. Javascript Command - Tools for writing/testing JavaScript on Firefox windows, web pages, and bookmarklets. [Requires Login] SQLite Manager - Shows the database structure in an intuitive hierarchical tree. Browse and manage tables, indexes, views and triggers.