Featured Add-ons

by Mozilla

77 Add-ons in this Collection

uBlock Origin by Raymond Hill

Rated 5 out of 5 stars 4,112 reviews

4,926,147 users

Finally, an efficient blocker. Easy on CPU and memory.

Adblock Plus by Eyeo

Rated 5 out of 5 stars 6,664 reviews

13,241,704 users

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).

AdBlock for Firefox by AdBlock

Rated 4 out of 5 stars 501 reviews

824,370 users

The most popular ad blocker for Chrome and Safari, now available for Firefox! Block all advertisements on all web pages, even Facebook, Youtube, and Hulu. Browse faster, too! Most ads aren't even downloaded at all, saving you time and bandwidth.

Enhancer for YouTube™ by Maxime RF

Tons of features to improve your user experience on YouTube™.

Ghostery by Ghostery

Rated 5 out of 5 stars 1,913 reviews

1,045,213 users

See who’s tracking you online and protect your privacy with Ghostery.

Easy Youtube Video Downloader Express by Dishita

Rated 4 out of 5 stars 1,763 reviews

325,010 users

WORKS WITH NEW YOUTUBE LAYOUT, "Best Youtube Video Downloader", Only one with 1080p Full-HD and 256kbps MP3 Direct Links. A clean, fast and simple addon for superfast and easy downloads in FLV, 3GP, MP3, MP4, 720p, 1080p qualities on Youtube pages.

AdBlocker Ultimate by AdBlocker Ultimate

Rated 5 out of 5 stars 3,287 reviews

443,312 users

Free and improved ad blocker. Completely remove ALL ads. No "acceptable" ads or whitelisted advertisers, block tracking, block malware!

Emoji Cheatsheet by Johann Hofmann

Rated 4 out of 5 stars 107 reviews

117,976 users

A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook.
Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.

Privacy Badger by EFF Technologists

Rated 5 out of 5 stars 328 reviews

411,902 users

Protects your privacy by blocking spying ads and invisible trackers.

To Google Translate by Juan Escobar

Rated 4 out of 5 stars 507 reviews

144,172 users

Right-click on a section of text and click on Translate icon next to it to translate or listen it to your language.

Video Downloader Prime by Mark_m

Rated 4 out of 5 stars 180 reviews

84,463 users

Easily download most popular video formats.

FoxyProxy Standard by Eric H. Jung

Rated 4 out of 5 stars 541 reviews

173,516 users

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Grammarly for Firefox by Grammarly

Rated 4 out of 5 stars 418 reviews

608,904 users

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.

YouTube Video and Audio Downloader (WebEx) by RayLo

Rated 4 out of 5 stars 175 reviews

89,124 users

Download YouTube videos in all available formats and extract the original audio files

User-Agent Switcher by Linder

Rated 4 out of 5 stars 66 reviews

46,983 users

Quickly and easily switch between popular user-agent strings.
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