Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseFeatured Extensions
Sort by:
lesspass
Compatible with Firefox 57+
Featured
Use LessPass add-on to generate complex passwords and log in automatically to all your sites
This add-on is not compatible with your version of Firefox because of the following:
Wikipedia Peek
Compatible with Firefox 57+
Featured
Shows previews of linked articles on Wikipedia pages.
This add-on is not compatible with your version of Firefox because of the following:
FireSSH
Requires Restart
Featured
FireSSH is a free, cross-platform SSH terminal client for Mozilla Firefox. Written entirely in Javascript!
This add-on is not compatible with your version of Firefox because of the following:
gtranslate
Featured
With gtranslate you can translate any text in a web page just by selecting and right-clicking over it. The extension uses the Google translation services to translate the text.
This add-on is not compatible with your version of Firefox because of the following:
Torrent Tornado
Requires Restart
Featured
A Torrent Client for Firefox and SeaMonkey, runs everywhere, created in pure JavaScript without binary software!
This add-on is not compatible with your version of Firefox because of the following:
Tile Tabs
Requires Restart
Featured
Displays tabs in tiled layouts in Firefox. Arrange tiles horizontally, vertically or in a grid. Resize tiles by dragging splitter bars. Tabs and links can be dragged to open in other tiles. Supports multiple tiled layouts. Works with tab groups.
This add-on is not compatible with your version of Firefox because of the following:
Lightbeam for Firefox
Featured
Lightbeam is a Firefox add-on that enables you to see the first and third party sites you interact with on the Web. Using interactive visualizations, Lightbeam shows you the relationships between these third parties and the sites you visit.
This add-on is not compatible with your version of Firefox because of the following:
QR Code Image Generator
Featured
Create a QR Code of the selected text or current URL. Use CTRL-SHIFT-Q to quickly see the QR Code. Also possible to create a QR Code from free text within Firefox. Works completely offline! Now with UTF8 support.
This add-on is not compatible with your version of Firefox because of the following:
Gmail™ Notifier +
Compatible with Firefox 57+
Featured
Gmail™ Notifier Plus alerts you of new email messages. Users can also read or reply to emails, delete or mark them as read, all without having to open a new window.
This add-on is not compatible with your version of Firefox because of the following:
ReaderThis add-on is not compatible with your version of Firefox because of the following:
Tab Groups
Featured
Tab Groups are an easy way to organize a lot of tabs. You can visually group related tabs, switch between groups, and quickly search through all of your tabs to switch to a specific one.
This add-on is not compatible with your version of Firefox because of the following:
uBlock OriginThis add-on is not compatible with your version of Firefox because of the following:
QuickMarkThis add-on is not compatible with your version of Firefox because of the following:
History Submenus IIThis add-on is not compatible with your version of Firefox because of the following:
Reverse Image Search
Compatible with Firefox 57+
Featured
Capture, Reverse Image Search is a powerful capturing reverse image search tool built on top of TinEye engine.
This add-on is not compatible with your version of Firefox because of the following:
Tab Reloader (Page Reloader)
Compatible with Firefox 57+
Featured
An easy-to-use tab reloader with custom reloading time settings for individual tabs
This add-on is not compatible with your version of Firefox because of the following:
FireFTP
Requires Restart
Featured
FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.
Check out my new project, FireSSH!
This add-on is not compatible with your version of Firefox because of the following:
BlurThis add-on is not compatible with your version of Firefox because of the following:
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 is not compatible with your version of Firefox because of the following:
Turn Off the Lights
Compatible with Firefox 57+
Featured
The entire page will be fading to dark, so you can watch the video as if you were in the cinema.
This add-on is not compatible with your version of Firefox because of the following:
To create your own collections, you must have a Mozilla Add-ons account.
