Language: 日本語 (Japanese)
Firefox Language Pack for 日本語 (ja) – Japanese
295,292 users
Language: Nederlands (Dutch)
Firefox Language Pack for Nederlands (nl) – Dutch
294,368 users
Language: Português (PT) (Portuguese)
Firefox Language Pack for Português (PT) (pt-PT) – Portuguese
288,305 users
Russian spellchecking dictionary
Russian spellchecking dictionary
278,409 users
Norton Password Manager
Norton Password Manager. Free password security you can trust.
277,078 users
Language: Українська (Ukrainian)
Firefox Language Pack for Українська (uk) – Ukrainian
275,420 users
Reddit Enhancement Suite
Reddit Enhancement Suite (RES) is a suite of tools to enhance your Reddit browsing experience.
274,268 users
271,241 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.
257,436 users
Language: Čeština (Czech)
Firefox Language Pack for Čeština (cs) – Czech
245,029 users
German Dictionary
German Dictionary (new Orthography) for spellchecking in Firefox
240,900 users
Language: 正體中文 (Traditional Chinese)
Firefox Language Pack for 正體中文 (zh-TW) – Traditional Chinese
239,548 users
Coupert - Automatic Coupon Finder & Cashback
Coupert automatically finds coupons, applies best coupon code at checkout & gives you cashback.
235,982 users
231,194 users
Language: Svenska (Swedish)
Firefox Language Pack for Svenska (sv-SE) – Swedish
231,017 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.
228,360 users
228,356 users
Language: Magyar (Hungarian)
Firefox Language Pack for Magyar (hu) – Hungarian
221,719 users
221,123 users
Language: Ελληνικά (Greek)
Firefox Language Pack for Ελληνικά (el) – Greek
220,920 users
Language: Suomi (Finnish)
Firefox Language Pack for Suomi (fi) – Finnish
217,502 users
Startpage
This extension protects users from being tracked while allowing them to search the web in complete private mode.
214,587 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. V3.3.2 has 140 000+ new words and also fixes.
213,647 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
213,329 users
Language: Català (Catalan)
Firefox Language Pack for Català (ca) – Catalan
213,240 users