Quit Fennec - Firefox Addon - With this add-on, Fennec will quit when you press the "close" button on the last open tab.
The Android OS automatically pauses applications when they are in the background, and closes them when free memory is needed. So most users shouldn't need to "quit" applications in Android
CommentBlocker - Firefox Addon - Have you ever found yourself frustrated while reading some stupid comments written on a website? We've all been there. This addon, CommentBlocker, is the perfect solution for us who get annoyed daily on comment posts.
The addon is customizable and lets you choose whether or not to blacklist or whitelist specific websites
about:synckey - Firefox Addon - This is a small restartless add-on for Firefox to view your Sync Key at about:synckey. Useful when you only have your mobile device running Firefox Mobile at hand and you would like to connect to your Sync account.
1. Install this add-on. It's restartless, so no restart required.
2. Open a new tab and go to about:synckey
Restartless Restart - This very tiny (12KB) add-on will add a "Restart" menu item to the "File" menu, optional toolbar button, and a ctrl/cmd + alt + r hotkey to Firefox, Seamonkey, and Thunderbird which will restart the program
DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within