Language: Nederlands (Dutch)
Firefox Language Pack for Nederlands (nl) – Dutch
293,993 users
Language: 日本語 (Japanese)
Firefox Language Pack for 日本語 (ja) – Japanese
290,824 users
Language: Português (PT) (Portuguese)
Firefox Language Pack for Português (PT) (pt-PT) – Portuguese
285,988 users
Norton Password Manager
Norton Password Manager. Free password security you can trust.
280,829 users
Reddit Enhancement Suite
Reddit Enhancement Suite (RES) is a suite of tools to enhance your Reddit browsing experience.
277,680 users
Russian spellchecking dictionary
Russian spellchecking dictionary
273,610 users
273,358 users
Language: Українська (Ukrainian)
Firefox Language Pack for Українська (uk) – Ukrainian
272,419 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.
258,584 users
German Dictionary
German Dictionary (new Orthography) for spellchecking in Firefox
247,226 users
Language: Čeština (Czech)
Firefox Language Pack for Čeština (cs) – Czech
245,715 users
Language: 正體中文 (Traditional Chinese)
Firefox Language Pack for 正體中文 (zh-TW) – Traditional Chinese
241,002 users
Coupert - Automatic Coupon Finder & Cashback
Coupert automatically finds coupons, applies best coupon code at checkout & gives you cashback.
240,856 users
233,623 users
Language: Svenska (Swedish)
Firefox Language Pack for Svenska (sv-SE) – Swedish
232,886 users
229,977 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.
227,488 users
Language: Magyar (Hungarian)
Firefox Language Pack for Magyar (hu) – Hungarian
223,503 users
Language: Suomi (Finnish)
Firefox Language Pack for Suomi (fi) – Finnish
219,844 users
219,309 users
Startpage
This extension protects users from being tracked while allowing them to search the web in complete private mode.
218,642 users
Language: Ελληνικά (Greek)
Firefox Language Pack for Ελληνικά (el) – Greek
217,507 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.
213,153 users
Language: Català (Catalan)
Firefox Language Pack for Català (ca) – Catalan
212,193 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.
211,380 users