Vimium
The Hacker's Browser. Vimium provides keyboard shortcuts for navigation and control in the spirit of Vim.
35,637 users
Google Scholar Button
Lookup scholarly articles as you browse the web.
110,465 users
Gesturefy
Navigate, operate, and browse faster with mouse gestures! A customizable mouse gesture add-on with a variety of different commands.
97,714 users
290 users
Video Downloader Pro
Video Downloader helps to download any video and music from most websites! Fast, easy, free!
32,978 users
Brazilian Portuguese Dictionary (New Spelling)
The same spellchecker shipped with the Brazilian version of Firefox.
76,331 users
ModHeader
Add and modify the HTTP request headers and response headers. Use ModHeader to: - Add / modify request and response headers - Add / modify cookies - Multi-profile support - Filtering based on URL, tab, or window - Export and share profiles
19,816 users
Adblock for Youtube™
Popular Adblock for Youtube™ Extension: Removes the video ads from Youtube™. Thanks to all AdBlock supporters!
49,107 users
Hide My IP Free
Hide Your IP Address and Unblock Websites for Free with the Hide My IP proxy and VPN IP network. Thousands of IPs around the world to choose from. Access your favorite streaming sites by changing your IP location. No ads or limitations.
8,642 users
Save webP as PNG or JPEG (Converter)
Convert any image (WebP, AVIF, etc.) to PNG or JPEG (with choice of quality) for downloading. Right-click context menu calls up format options overlaid on the image. Read the detailed description and check the screenshots for more info.
62,522 users
Dark Background and Light Text
Make every web page (or just the pages you want) display light text on dark backgrounds. All color variations are fully customizable.
40,420 users
Allow Right-Click
Re-enable the possibility to use the context menu on sites that overrides it
41,453 users
Norton AntiTrack
Feel like you have little to no control over what information the sites you visit collect and share? Norton AntiTrack can help.
42,281 users
XDM Browser Monitor
XDM integration module for Firefox Quantum.This addon should be used with XDM 2018 and higher to take over download from Firefox.Please visit https://github.com/subhra74/xdm for more information.
17,554 users
RusVPN - Free VPN
RusVPN - Free VPN Proxy service
6,185 users
TunnelBear VPN
TunnelBear is a simple app that helps you browse the Internet privately and securely. TunnelBear changes your IP and protects your browsing data from online threats, letting you access your favorite websites and apps worldwide.
18,907 users
Language: Français (French)
Firefox Language Pack for Français (fr) – French
924,547 users
vidIQ Vision for YouTube
With insights and metrics that go beyond YouTube Analytics, vidIQ Vision delivers a comprehensive optimization report card for any YouTube video via your Firefox browser!
42,225 users
ScriptCat
脚本猫,一个可以执行用户脚本的浏览器扩展,万物皆可脚本化,让你的浏览器可以做更多的事情!
11,828 users
8,820 users
SteamDB
Adds SteamDB links and new features on the Steam store and community. View lowest game prices and stats.
50,670 users
Disconnect
Make the web faster, more private, and more secure.
96,764 users
JavaScript-Java Bridge
A replacement for the Java Plugin so Java Applets without graphics continue to work on browsers that no longer support NPAPI plugins. Java's LiveConnect API is emulated — data & method calls can be exchanged, and Java can manipulate the webpage DOM.
34,694 users
FastForward
Don't waste time with compliance. Use FastForward to skip annoying URL "shorteners".
42,060 users
YouTube Downloader (UDL Helper)
Download YouTube / Instagram / Odnoklassniki videos and extract audio from video with just a few mouse clicks. Supported media formats are MP3, MP4, WEBM. Capture frames from online videos with a screenshot button.
13,891 users