Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
Bug 855544 - Implement a network monitor,
Bug 859089 - [netmonitor] Under very constrained sizes text in the timeline view is sometimes not rendered
Bug 808370 - Use the VariablesView in webconsole
Bug 818134 - Allow multiple debuggers in toolboxes to debug separate tabs
Bug 848150 - Update about:home favicons.
Bug 782211 - Implement notification API spec
Bug 835899 - Web Console autocomplete popup could need some UI love
Bug 818151 - [toolbox] adapt the toolbox UI to make it fit on the side of the browser
Bug 648675 - Allow comments and URL opt-in in content/plugin crash UI.
Bug 836867 - The Find Toolbar should transition when opening and closing.
Bug 788165 - Breakpoint arrow does not change to green when the debugger breaks on that line.
Bug 737100 - Extend Pointer Lock (Mouse Lock) for non-fullscreen elements
Bug 818935 - explicitly control the size of icons in the downloaded items list.
Bug 762160 - Find Implementors of a function in the Debugger
Bug 836233 - [Inspector] Implement Shorlander's visual design.
Bug 853431 - Fix menulist active (hover) text color on Windows 7 and up.
Bug 837008 - Make the Add-ons Manager search textbox adapt to small window size.
Bug 856040 - Adjust padding of XUL menulist to match native widget on Windows 7 and up.
Bug 836452 - Implement service install panel, cleanup activation panel.