Unpaywall
Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles.
61,475 users
TTV LOL PRO
TTV LOL PRO removes most livestream ads from Twitch.
35,800 users
YouTube High Definition
YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.
162,511 users
Auto Refresh Page
Refresh web pages automatically. Auto-refresh and page monitor with specified time intervals.
27,529 users
Audio Equalizer
Stylish audio equalizer in toolbar popup.
36,702 users
Don't track me Google
Removes the annoying link-conversion at Google Search / maps / ...
66,025 users
Keeper® Password Manager & Digital Vault
Protect and autofill passwords with the world's most trusted and #1 downloaded secure password manager and digital vault.
49,303 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.
15,617 users
Vue.js devtools
DevTools extension for debugging Vue.js applications.
84,506 users
3,867 users
Vimium
The Hacker's Browser. Vimium provides keyboard shortcuts for navigation and control in the spirit of Vim.
36,123 users
SingleFile
Save an entire web page—including images and styling—as a single HTML file.
56,918 users
YouTube mp3
The YouTube-mp3 Add-on generates a "MP3" button on YouTube. Convert YouTube to mp3 and download the file to your device.
35,065 users
Flash Player
Flash Player runs and saves any flash file across the web. The Addon allows you to add any flash file into the app's playlist and access them on any website by simply clicking an extension icon.
54,370 users
My IP Hider VPN
My IP Hider VPN is number one tool for hiding your IP and unblocking any web site! If your Firefox version is less then 55 please install older My IP Hider VPN from "Version History" (https://goo.gl/7ZQQjZ)
14,059 users
AVG Online Security
AVG Browser Security and Web Reputation Plugin. Offering protection against known phishing and malware sites, improving your browsing overall browsing experience with crowd sourced web reputation rating.
70,669 users
Language: English (GB)
Firefox Language Pack for English (GB) (en-GB)
1,735,411 users
New Tab Override
New Tab Override allows you to set the page that shows whenever you open a new tab.
64,113 users
Video Downloader Pro
Video Downloader helps to download any video and music from most websites! Fast, easy, free!
32,680 users
Startpage
This extension protects users from being tracked while allowing them to search the web in complete private mode.
215,438 users
Song Identifier
Music recognition. Like shazam or soundhound.
28,649 users
Brazilian Portuguese Dictionary (New Spelling)
The same spellchecker shipped with the Brazilian version of Firefox.
73,950 users
automaticDark - Time-Based Theme Changer
Automatically change Firefox's theme based on the time.
6,553 users
Easy Video Downloader (Flash and Video)
A video and audio downloader (grabber) that works with both internal and external download managers like IDM or Wget
23,911 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.
8,620 users