English (US) Dictionary
English (US) dictionary based on the official Mozilla dictionary.
127,094 users
Language: Triqui
Firefox Language Pack for Triqui (trs)
127,029 users
Language: Ślōnsko (Silesian)
Firefox Language Pack for Ślōnsko (szl) – Silesian
126,764 users
Language: Scots
Firefox Language Pack for Scots (sco)
126,167 users
Wappalyzer
Identify technologies on websites
123,816 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.
123,577 users
DeepL Translate: Reading & writing translator
Translate while you read and write with DeepL Translate, the world’s most accurate translator.
120,377 users
Firefox Color
Build, save and share beautiful Firefox themes.
119,174 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!
118,463 users
Urban Free VPN proxy Unblocker - Best VPN
Stay anonymous & secure with VPN - surf through 80 locations with Urban VPN for Firefox
115,560 users
Flagfox
Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...
115,269 users
Spanish (Spain) Dictionary
Spanish/Spain Dictionary
113,729 users
113,440 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.
112,619 users
Google Scholar Button
Lookup scholarly articles as you browse the web.
111,288 users
Stylus
Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets.
111,013 users
Mendeley Web Importer
Fast, convenient import of references and PDFs to your Mendeley Reference Manager library
109,807 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.
107,949 users
106,548 users
Awesome Screenshot & Screen Recorder
Full page screen capture and screen recorder 2 in 1. Share screencast video instantly.
100,997 users
KeePassXC-Browser
Official browser plugin for the KeePassXC password manager (https://keepassxc.org).
97,444 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.
97,371 users
97,220 users
Video Speed Controller
Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts.
97,208 users
Ant Video Downloader
Browser extension with a companion application for downloading and merging streaming video segments.
95,991 users