English (US) Dictionary
English (US) dictionary based on the official Mozilla dictionary.
126,409 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.
123,971 users
Language: Català (Valencià)
Firefox Language Pack for Català (Valencià) (ca-valencia) – Catalan, Valencian
123,191 users
Wappalyzer
Identify technologies on websites
122,973 users
Firefox Color
Build, save and share beautiful Firefox themes.
118,758 users
DeepL Translate: Reading & writing translator
Translate while you read and write with DeepL Translate, the world’s most accurate translator.
118,500 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!
117,869 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.
116,438 users
Urban Free VPN proxy Unblocker - Best VPN
Stay anonymous & secure with VPN - surf through 80 locations with Urban VPN for Firefox
114,216 users
113,672 users
Spanish (Spain) Dictionary
Spanish/Spain Dictionary
111,092 users
Google Scholar Button
Lookup scholarly articles as you browse the web.
110,680 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.
108,948 users
Mendeley Web Importer
Fast, convenient import of references and PDFs to your Mendeley Reference Manager library
108,918 users
106,883 users
Awesome Screenshot & Screen Recorder
Full page screen capture and screen recorder 2 in 1. Share screencast video instantly.
99,913 users
KeePassXC-Browser
Official browser plugin for the KeePassXC password manager (https://keepassxc.org).
97,555 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.
97,505 users
97,445 users
Video Speed Controller
Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts.
96,599 users
Ant Video Downloader
Browser extension with a companion application for downloading and merging streaming video segments.
96,020 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.
95,719 users
Web Developer
The Web Developer extension adds various web developer tools to the browser.
91,758 users
Authenticator
Authenticator generates 2-Step Verification codes in your browser.
90,818 users
Absolute Enable Right Click & Copy
Force Enable Right Click & Copy
89,814 users