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Featured extensions
TinEye Reverse Image Search
TinEye is a reverse image search engine. The extension adds a context menu item so you can search for an image to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions.
65,612 users
Popup Blocker (strict)
Strictly block all popup requests from any website by default. A notification window is opened to allow you accept, reject, open the popup in background page, or redirect the current page to popup address
31,482 users
Google™ Translator Lite
a powerful tool to translate words or sentences
37,002 users
EPUBReader
With EPUBReader you can read ePub files just in Firefox. No additional software needed!
210,333 users
Popular extensions
Adblock Plus
Blocks annoying video ads on YouTube, Facebook ads, banners and much more. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
11,574,140 users
uBlock Origin
Finally, an efficient blocker. Easy on CPU and memory.
4,291,917 users
Video DownloadHelper
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
3,063,300 users
Easy Screenshot
Capture a screenshot of the whole webpage, and save in your desktop in default.
2,280,731 users
Top-rated Themes
Productivity tools
Grammarly for Firefox
Grammarly will help you communicate more effectively. As you type, Grammarly flags mistakes and helps you make sure your messages, documents, and social media posts are clear, mistake-free, and impactful.
498,337 users
Gesturefy
Customizable mouse gesture addon, which supports over 40 different actions.
81,746 users
OneNote Web Clipper
Save anything on the web to OneNote. Clip it to OneNote, organize and edit it, then access it from any device.
45,698 users
Snap Links Plus
Select a number of links with a rectangle and open them all in new tabs in the same or a new window(s), download them or copy them to the clipboard. You can also lasso checkboxes to quickly check or uncheck them.
21,067 users
Privacy protection
Ghostery
See who’s tracking you online and protect your privacy with Ghostery.
906,526 users
Privacy Badger
Protects your privacy by blocking spying ads and invisible trackers.
364,187 users
Disconnect
Make the web faster, more private, and more secure.
196,890 users
Firefox Multi-Account Containers
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously.
52,302 users