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.
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lesspass
Compatible with Firefox 57+
Featured
Use LessPass add-on to generate complex passwords and log in automatically to all your sites
Zoom Page WE
Compatible with Firefox 57+
Featured
Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom, automatic fit-to-width and minimum font size.
Bulk Media Downloader
Compatible with Firefox 57+
Featured
Grab and download media (image, audio, and video) resources by monitoring network (like FlashGot or Flash video downloader extensions)
Google search link fix
Compatible with Firefox 57+
Featured
This extension prevents Google and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.
AdBlocker Ultimate
Compatible with Firefox 57+
Featured
Free and improved ad blocker. Completely remove ALL ads. No "acceptable" ads or whitelisted advertisers, block tracking, block malware!
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.
Youtube Dark Mode
Compatible with Firefox 57+
Featured
Switch youtube to dark mode. Dark mode will help devices save battery and useful for your sleeping. Make donation for us http://www.paypal.me/hoangthanh. Thank you!
Dark YouTube Theme
Compatible with Firefox 57+
Featured
Shut down the lights on YouTube.
Enjoy!
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.
Awesome Screenshot Plus - Capture, Annotate & More
Compatible with Firefox 57+
Featured
Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!
EPUBReader
Compatible with Firefox 57+
Featured
With EPUBReader you can read ePub files just in Firefox. No additional software needed!
Video Downloader Prime
Compatible with Firefox 57+
Featured
Easily download most popular video formats.
New Tab Override (WebExtension)
Compatible with Firefox 57+
Featured
New Tab Override brings back the ability to change the page which is shown when opening a new tab.
Speed Dial (Lite)
Compatible with Firefox 57+
Featured
Access to your favorite websites via an stylish speed dial!
Tomato Clock
Compatible with Firefox 57+
Featured
Tomato Clock is a simple browser extension for managing your productivity.
Country Flags & IP Whois
Compatible with Firefox 57+
Featured
Displays country flag of website's server location, Whois and Geo info on a browser addressbar icon
Font Finder (revived)
Compatible with Firefox 57+
Featured
Get all CSS styles of selected text
Tab notifier
Compatible with Firefox 57+
Featured
Enables desktop notifications like in Chrome (e.g. Gmail, imo.im) and, if the site doesn't support them, it can notify new messages or updates detecting changes of the title (e.g. Hotmail, Yahoo, Facebook, Twitter). Even if the browser is minimized!
Forecastfox (fix version)
Compatible with Firefox 57+
Featured
Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.
Now Available for: Firefox, Thunderbird and SeaMonkey!
Disconnect
Compatible with Firefox 57+
Featured
Make the web faster, more private, and more secure.
To create your own collections, you must have a Mozilla Add-ons account.
