Most Popular Extensions
All-in-One Sidebar Requires Restart
AiOS lets you open various windows as sidebar panels, and quickly switch between them. So it put an end to the window chaos! In addition to bookmarks and history it opens dialogues such as downloads, add-ons and more in the sidebar.
Speed Dial [FVD] - New Tab Page, Sync... Requires Restart
FVD Speed Dial - Speed dial button, online synchronization, new tab start page, bookmark organization, custom backgrounds, custom dials, groups, mobile apps, most-visited dials.
Download Statusbar Requires Restart
View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
Thanks Tekzilla for your awesome review! Click here to see their video: http://youtu.be/BUDqWrJ-Vao
Selenium IDE Requires Restart
Selenium IDE is an integrated development environment for Selenium tests. It is implemented as a Firefox extension, and allows you to record, edit, and debug tests.
ipFlood Requires Restart
Simulate the use of a series of proxy changing at each new connection.
A free extension of the web tool https://emojikeyboard.org. It helps input emoji in the web browser with an extensive search functionality.
1) Screen capture web pages.
2) Selected regions.
3) Whole browser windows.
4) Slack direct upload (NEW!)
Edit screenshots and save images as local file or Google Drive. Annotate screenshots with different tools. Upload and share!
Now with 1080p Full-HD Support!
Download every YouTube video you want and you can download them as Full-HD MP4, FLV, 3GP, MP3 128kbps and 192kbps, M4A and AAC formats. Also thumbnails and subtitles can be downloaded! Easy and Fast!
Menu Wizard Requires Restart Featured
Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey
Qwant is the European search engine that does not track you. This extension makes Qwant your default search engine and homepage as well as allowing you to easily extend Firefox Tracking Protection to the whole Web.
Status-4-Evar Requires Restart
Status bar widgets and progress indicators for Firefox 4+
This add-on brings back the ability to change the page which is shown when opening a new tab.
Tons of features to improve your user experience on YouTube™.
The most efficient blocker for Firefox.
No ads, no tracking, and insanely faster page loads.
VKontakte.ru Downloader (music/videos/photos @ VK) Requires Restart
Download music, videos and photos from VK.com / vkontakte.ru. One-click download, natural filenames, displaying file size and bitrate for music, downloading HD video, downloading HQ photos. No spam, no usage of your account, no spyware.
Mozilla Archive Format, with MHT and Faithful Save Requires Restart
— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!
Empty Cache Button Requires Restart
Cache clearing made easy. One click.
MeasureIt Requires Restart
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
Print Edit Requires Restart Featured
Allows editing of web page content while in Print Preview mode, prior to printing or saving as HTML or PDF. Compacts the layout and removes unwanted content such as adverts, sidebars and blank pages. Any element can be formatted, hidden or deleted.