Answers Questions Requires Restart
Adds to browser simple answers questions scripts generator.
Adds a few buttons to help with page navigation, including Page Top, Page Bottom, Page Down and Page Up.
BackupHelper Plus for ScrapBook Plus / XSidebar Requires Restart
BackupHelper is an Add-On to the firefox extension ScrapBook / ScrapBook Plus. This is modified version of the original Add-On. Uninstall the original BackupHelper before you use this extension.
En 4 pasos envía la serenata, sencillo, seguro y rápido.
Share to Google+ Page Requires Restart
Share to your Google+ Profile or Google+ Page with just click of a button.
Adds buttons to open and manage the find bar.
Search YouTube For This Requires Restart
Right click on selected or a link click search YouTube For Video of in the menu, a new tab will open with the searched text.
Show notable forks of Github projects.
SeaMonkey Debug and QA UI Requires Restart
Provides Additional Debug and QA UI for SeaMonkey development and testing.
Export All Certificates Requires Restart
Adds an option to export all root certificates.
WOT Play Replay Requires Restart
Данное приложение расширяет возможности сайта wotreplays.ru
Scrapbook X CopyPageInfo Requires Restart
Copies the information from ScrapBook data items.
Quick Locale Switcher 2 Requires Restart
Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.
Słownik synonimów PL Requires Restart
Adds to browser Polish synonyms dictionary from package LibreOffice.
The "Responsible Blocker" arrives to save the Internet, this extension blocks all those annoying ads, but allows only small and acceptable ads, so the websites you like can continue online.
The "Responsible Blocker" arrives to save the Internet
Open With Vivaldi Browser sends pages from Mozilla Firefox to Vivaldi browser.
Prevent duplicate tabs. Allow only one tab for a url. If you click a link that is already opened in a tab, then existing tab would be focused instead of opening a new tab. This works even across firefox windows.
A button that lists all the about pages that exist. Some of these pages are also provided as separate buttons.
TheRealURL Requires Restart
Get URL information: expand short URLs, get title and content type information without visiting the site.
UPDATE, AUG 2013: THIS EXTENSION IS NO LONGER SUPPORTED. The source is open - if you wish to take on the development, you're welcome.