Language: Nederlands (Dutch)
Firefox Language Pack for Nederlands (nl) – Dutch
286,563 users
Language: 日本語 (Japanese)
Firefox Language Pack for 日本語 (ja) – Japanese
286,076 users
Language: Português (PT) (Portuguese)
Firefox Language Pack for Português (PT) (pt-PT) – Portuguese
273,261 users
Reddit Enhancement Suite
Reddit Enhancement Suite (RES) is a suite of tools to enhance your Reddit browsing experience.
273,239 users
Norton Password Manager
Norton Password Manager. Free password security you can trust.
266,912 users
Language: Українська (Ukrainian)
Firefox Language Pack for Українська (uk) – Ukrainian
263,742 users
Russian spellchecking dictionary
Russian spellchecking dictionary
259,120 users
256,576 users
Zoom Extension
Recommended, support FireFox 45+. The Zoom Firefox Extension allows participants to schedule Zoom cloud meetings directly from Google Calendar. you can start an instant meeting or schedule a future meeting via a button.
251,193 users
German Dictionary
German Dictionary (new Orthography) for spellchecking in Firefox
241,840 users
Language: Čeština (Czech)
Firefox Language Pack for Čeština (cs) – Czech
234,866 users
Coupert - Automatic Coupon Finder & Cashback
Coupert automatically finds coupons, applies best coupon code at checkout & gives you cashback.
231,399 users
Language: 正體中文 (Traditional Chinese)
Firefox Language Pack for 正體中文 (zh-TW) – Traditional Chinese
230,241 users
Language: Svenska (Swedish)
Firefox Language Pack for Svenska (sv-SE) – Swedish
221,052 users
Google Translator for Firefox
With this addon you can translate any text to your own language with one click or hot-key. You can either translate the selected text, this way the translated text will overwrite the original selected text, or you can translate the full page too.
220,830 users
218,431 users
Startpage
This extension protects users from being tracked while allowing them to search the web in complete private mode.
217,338 users
215,313 users
Language: Magyar (Hungarian)
Firefox Language Pack for Magyar (hu) – Hungarian
214,456 users
Language: Ελληνικά (Greek)
Firefox Language Pack for Ελληνικά (el) – Greek
209,471 users
Keepa.com - Amazon Price Tracker
→ Price History charts → Price Drop & Availability Alerts → Over 1 billion tracked products → Supports Amazon .com | .co.uk | .de | .co.jp | .fr | .ca | .it | .es | .in | .mx
208,929 users
208,523 users
British English Dictionary (Marco Pinto)
A fork of Mark Tyndall's add-on, based on David Bartlett's British Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey. V3.3.3 has 140 000+ new words and also fixes.
208,521 users
Language: Suomi (Finnish)
Firefox Language Pack for Suomi (fi) – Finnish
208,288 users
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.
207,935 users