Language: Nederlands (Dutch)
Firefox Language Pack for Nederlands (nl) – Dutch
301,235 users
Language: 日本語 (Japanese)
Firefox Language Pack for 日本語 (ja) – Japanese
297,343 users
Language: Português (PT) (Portuguese)
Firefox Language Pack for Português (PT) (pt-PT) – Portuguese
294,733 users
Norton Password Manager
Norton Password Manager. Free password security you can trust.
285,254 users
Language: Українська (Ukrainian)
Firefox Language Pack for Українська (uk) – Ukrainian
283,293 users
281,986 users
Russian spellchecking dictionary
Russian spellchecking dictionary
279,874 users
Reddit Enhancement Suite
Reddit Enhancement Suite (RES) is a suite of tools to enhance your Reddit browsing experience.
279,672 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.
263,878 users
German Dictionary
German Dictionary (new Orthography) for spellchecking in Firefox
255,281 users
Language: Čeština (Czech)
Firefox Language Pack for Čeština (cs) – Czech
251,734 users
Language: 正體中文 (Traditional Chinese)
Firefox Language Pack for 正體中文 (zh-TW) – Traditional Chinese
246,368 users
Coupert - Automatic Coupon Finder & Cashback
Coupert automatically finds coupons, applies best coupon code at checkout & gives you cashback.
245,638 users
240,942 users
Language: Svenska (Swedish)
Firefox Language Pack for Svenska (sv-SE) – Swedish
238,446 users
237,212 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.
231,971 users
Language: Magyar (Hungarian)
Firefox Language Pack for Magyar (hu) – Hungarian
228,603 users
227,578 users
Language: Suomi (Finnish)
Firefox Language Pack for Suomi (fi) – Finnish
225,148 users
Language: Ελληνικά (Greek)
Firefox Language Pack for Ελληνικά (el) – Greek
223,441 users
Startpage
This extension protects users from being tracked while allowing them to search the web in complete private mode.
222,943 users
Language: Català (Catalan)
Firefox Language Pack for Català (ca) – Catalan
220,948 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.
218,517 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.
213,548 users