133,835 users
English (US) Dictionary
English (US) dictionary based on the official Mozilla dictionary.
132,620 users
Wappalyzer
Identify technologies on websites
129,697 users
Logitech Smooth Scrolling
Logitech® Smooth Scrolling extension delivers smooth-as-smartphone scrolling in Firefox and works with most Logitech mice and touchpads — new and old. Requires Logitech SetPoint 6.60 and above and Windows 7 and above. Gaming mice not supported.
129,147 users
124,055 users
DeepL Translate: Reading & writing translator
Translate while you read and write with DeepL Translate, the world’s most accurate translator.
122,381 users
Firefox Color
Build, save and share beautiful Firefox themes.
121,623 users
VPN VeePN - Free VPN for Firefox
Enjoy fast and secure free Firefox VPN Proxy extension. Unblock websites, protect your data, and browse freely – all at the highest connection speeds!
120,682 users
Qwant VIPrivacy
Qwant VIPrivacy sets Qwant.com as your default search engine, blocks trackers for you to protect your personal data while you browse.
119,722 users
Spanish (Spain) Dictionary
Spanish/Spain Dictionary
118,643 users
Avira Browser Safety
Avira Browser Safety helps identify internet addresses that are harmful to your system when you are browsing the web and protects your privacy by preventing invisible trackers.
115,974 users
Urban Free VPN proxy Unblocker - Best VPN
Stay anonymous & secure with VPN - surf through 80 locations with Urban VPN for Firefox
115,732 users
Google Scholar Button
Lookup scholarly articles as you browse the web.
114,911 users
Mendeley Web Importer
Fast, convenient import of references and PDFs to your Mendeley Reference Manager library
112,736 users
112,307 users
106,021 users
Citavi Picker
The Citavi Picker is an extension for Citavi software users (www.citavi.com). The Citavi Picker lets you easily import online information.
104,459 users
Awesome Screenshot & Screen Recorder
Full page screen capture and screen recorder 2 in 1. Share screencast video instantly.
104,275 users
KeePassXC-Browser
Official browser plugin for the KeePassXC password manager (https://keepassxc.org).
103,901 users
SetupVPN Lifetime Free VPN
Unblock any blocked website in your country, school or company. SetupVPN changes your IP address and location with just single click! It's free and easy to use. Setup your VPN now.
101,610 users
Authenticator
Authenticator generates 2-Step Verification codes in your browser.
100,811 users
Video Speed Controller
Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts.
100,543 users
Ant Video Downloader
Browser extension with a companion application for downloading and merging streaming video segments.
98,123 users
Web Developer
The Web Developer extension adds various web developer tools to the browser.
97,151 users
Vue.js devtools
DevTools extension for debugging Vue.js applications.
94,401 users