Firefox Relay
Firefox Relay lets you generate email aliases that forward to your real inbox. Use it to hide your real email address and protect yourself from hackers and unwanted mail.
210,468 users
Language: Norsk Bokmål (Norwegian Bokmål)
Firefox Language Pack for Norsk Bokmål (nb-NO) – Norwegian Bokmål
209,114 users
Language: Dansk (Danish)
Firefox Language Pack for Dansk (da) – Danish
208,184 users
Language: 한국어 (Korean)
Firefox Language Pack for 한국어 (ko) – Korean
204,013 users
Browsing Protection by F-Secure
Extension for protecting encrypted browsing with security products by F-Secure.
197,581 users
Greasemonkey
Customize the way a web page displays or behaves, by using small bits of JavaScript.
196,885 users
German Dictionary (Switzerland)
Dictionary with Swiss variants of German words for spellchecking in Firefox.
193,260 users
German Dictionary, extended for Austria
German dictionary ("new" orthography) for spellchecking in Firefox, extended with Austrian words
192,875 users
Language: Български (Bulgarian)
Firefox Language Pack for Български (bg) – Bulgarian
192,632 users
Video Downloader professional
- download and save videos embedded into a website to your hard disk - add youtube, vimeo and other videos easily to your video list - supports up to 4k videos
188,964 users
Language: Türkçe (Turkish)
Firefox Language Pack for Türkçe (tr) – Turkish
188,526 users
React Developer Tools
React Developer Tools is a tool that allows you to inspect a React tree, including the component hierarchy, props, state, and more. To get started, just open the Firefox devtools and switch to the "⚛️ Components" or "⚛️ Profiler" tab.
187,455 users
Language: Indonesia (Indonesian)
Firefox Language Pack for Indonesia (id) – Indonesian
187,439 users
Language: Slovenčina (Slovak)
Firefox Language Pack for Slovenčina (sk) – Slovak
186,541 users
Avast Online Security & Privacy
Secure your Mozilla Firefox browser against real-time online threats, trackers, and scams. We’ll check every site you visit, from Facebook to your bank, so nothing puts you or your data at risk. Join a growing community of 400 million Avast users.
184,725 users
Pinterest Save Button
Save your favorite ideas online so you can easily get back to them later.
177,486 users
Language: ไทย (Thai)
Firefox Language Pack for ไทย (th) – Thai
173,851 users
Language: Cрпски (Serbian)
Firefox Language Pack for Cрпски (sr) – Serbian
171,794 users
Language: עברית (Hebrew)
Firefox Language Pack for עברית (he) – Hebrew
171,033 users
Language: Lietuvių (Lithuanian)
Firefox Language Pack for Lietuvių (lt) – Lithuanian
170,758 users
Language: Slovenščina (Slovenian)
Firefox Language Pack for Slovenščina (sl) – Slovenian
170,169 users
169,973 users
Hoxx VPN Proxy
Hoxx VPN Proxy service to unblock blocked websites, hide your location and encrypt your connection. Completely free.
167,324 users
Language: Eesti (Estonian)
Firefox Language Pack for Eesti (et) – Estonian
166,365 users
Language: فارسی (Persian)
Firefox Language Pack for فارسی (fa) – Persian
166,278 users