Language: Nederlands (Dutch)
Firefox Language Pack for Nederlands (nl) – Dutch
297,060 users
Language: 日本語 (Japanese)
Firefox Language Pack for 日本語 (ja) – Japanese
295,702 users
Language: Português (PT) (Portuguese)
Firefox Language Pack for Português (PT) (pt-PT) – Portuguese
288,817 users
Reddit Enhancement Suite
Reddit Enhancement Suite (RES) is a suite of tools to enhance your Reddit browsing experience.
276,338 users
Language: Українська (Ukrainian)
Firefox Language Pack for Українська (uk) – Ukrainian
275,381 users
Norton Password Manager
Norton Password Manager. Free password security you can trust.
271,185 users
265,177 users
Russian spellchecking dictionary
Russian spellchecking dictionary
259,735 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.
258,566 users
German Dictionary
German Dictionary (new Orthography) for spellchecking in Firefox
254,582 users
Language: Čeština (Czech)
Firefox Language Pack for Čeština (cs) – Czech
242,824 users
Coupert - Automatic Coupon Finder & Cashback
Coupert automatically finds coupons, applies best coupon code at checkout & gives you cashback.
239,052 users
Language: 正體中文 (Traditional Chinese)
Firefox Language Pack for 正體中文 (zh-TW) – Traditional Chinese
238,145 users
Language: Svenska (Swedish)
Firefox Language Pack for Svenska (sv-SE) – Swedish
227,937 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.
225,995 users
225,596 users
Startpage
This extension protects users from being tracked while allowing them to search the web in complete private mode.
224,118 users
222,021 users
Language: Magyar (Hungarian)
Firefox Language Pack for Magyar (hu) – Hungarian
221,366 users
217,213 users
Language: Ελληνικά (Greek)
Firefox Language Pack for Ελληνικά (el) – Greek
216,475 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.
216,037 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
214,037 users
Language: Suomi (Finnish)
Firefox Language Pack for Suomi (fi) – Finnish
213,973 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.
209,249 users