Most Popular Extensions
Status-4-Evar Requires Restart
Status bar widgets and progress indicators for Firefox 4+
Image Zoom Requires Restart
Adds zoom and rotation functionality for images...
Grammarly’s free spelling and grammar checker ensures that everything you type is easy to read, effective, and mistake-free. As you type, Grammarly underlines spelling mistakes and grammatical errors and helps you fix them on the fly.
This extension allows Adobe installers to detect McAfee Security Scan Plus software is installed on your PC.
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!
Screengrab (fix version) Requires Restart
Screengrab! saves webpages as images.
New features: upload to internet
A very simple tabbed browsing extension that loads your homepage when you open a new tab. If you have multiple homepages, the first is chosen.
Youtube Downloader 4K - Video Downloader Requires Restart
Download from YouTube 4K videos and thousands other video websites.
Play all videos on YouTube with your preferred settings (size, quality, playback rate, …) without cookies using only HTML5.
Ecosia is a search engine that donates 80% of its surplus income to planting trees. By searching with Ecosia you can help the environment for free.
This extension adds Ecosia.org as the default search engine to your Firefox. Give it a try!
Lucifox Requires Restart
Read EPUB e-books and browse OPDS catalogs.
ChatZilla Requires Restart
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
Text Link Requires Restart
Allows URI texts written in webpages to be loaded by double clicks.
DOM Inspector Requires Restart
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.
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.
The legacy Test Pilot program has been replaced, and this add-on is no longer useful. If you're interested in testing new features in Firefox please join the new program at https://testpilot.firefox.com
Tab Scope Requires Restart Featured
Preview and navigate tab contents through popup.
Визуальные закладки – это страница, на которой собраны ваши любимые сайты.
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
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!