Most Popular Extensions
ReloadEvery Requires Restart
Reloads web pages every so many seconds or minutes. The function is accessible via the context menu (menu you get when you right click on a web page) or via tab context menu (right click on the tab)
Protect your Passwords, Payments, and Privacy.
Image Zoom Requires Restart
Adds zoom and rotation functionality for images...
Empty Cache Button Requires Restart
Cache clearing made easy. One click.
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.
Screengrab (fix version) Requires Restart
Screengrab! saves webpages as images.
New features: upload to internet
Live HTTP Headers Requires Restart
View HTTP headers of a page and while browsing.
MeasureIt Requires Restart
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
Quickly toggle between blocking all pop-up windows and allowing some pop-ups
Download youtube videos as mp3/mp4/ogg/webm fast and easy! Adding mirrors everyday to decrease any downtime! We monitor comments and work to fix any problems as soon as possible!
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wmlbrowser Requires Restart
Simulate WAP browsing by viewing WML (Wireless Markup Language) pages.
Theme Font & Size Changer Featured
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.
This add-on brings back the ability to change the page which is shown when opening a new tab.
Youtube Downloader 4K - Video Downloader Requires Restart
Download from YouTube 4K videos and thousands other video websites.
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
Reinstates the extensions.checkCompatibility preference without respect to the current application version.
Text Link Requires Restart
Allows URI texts written in webpages to be loaded by double clicks.
Youtube MP3 Podcaster Requires Restart
Self contained add-on for downloading youtube videos to mp3 for easy listening on podcasting gadgets like a Zune or iPod