Featured Add-ons

by Mozilla

82 Add-ons in this Collection

uBlock Origin by Raymond Hill

Rated 5 out of 5 stars 4,397 reviews

5,215,335 users

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

Adblock Plus by Eyeo

Rated 5 out of 5 stars 6,886 reviews

13,271,163 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 547 reviews

863,141 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™.

Easy Youtube Video Downloader Express by Dishita

Rated 4 out of 5 stars 1,886 reviews

351,455 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.

Ghostery – Privacy Ad Blocker by Ghostery

Rated 5 out of 5 stars 1,967 reviews

1,047,430 users

Ghostery is a powerful privacy extension.

Block ads, stop trackers and speed up websites.

Cookie AutoDelete by Kenny Do

Rated 4 out of 5 stars 333 reviews

86,601 users

Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Whitelist the ones you trust while deleting the rest. Support for Container Tabs.

AdBlocker Ultimate by AdBlocker Ultimate

Rated 5 out of 5 stars 3,465 reviews

438,767 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 123 reviews

124,346 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 351 reviews

411,656 users

Protects your privacy by blocking spying ads and invisible trackers.

To Google Translate by Juan Escobar

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 195 reviews

85,983 users

Easily download most popular video formats.

YouTube Video and Audio Downloader (WebEx) by RayLo

Rated 4 out of 5 stars 200 reviews

96,034 users

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

FoxyProxy Standard by Eric H. Jung

Rated 4 out of 5 stars 555 reviews

180,623 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.

User-Agent Switcher by Linder

Rated 4 out of 5 stars 74 reviews

55,390 users

Quickly and easily switch between popular user-agent strings.
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