Language: Nederlands (Dutch)
Firefox Language Pack for Nederlands (nl) – Dutch
276,860 users
Reddit Enhancement Suite
Reddit Enhancement Suite (RES) is a suite of tools to enhance your Reddit browsing experience.
274,516 users
Norton Password Manager
Norton Password Manager. Free password security you can trust.
274,366 users
Language: Português (PT) (Portuguese)
Firefox Language Pack for Português (PT) (pt-PT) – Portuguese
272,164 users
French spelling dictionary
Spelling dictionary for the French language.
269,883 users
Russian spellchecking dictionary
Russian spellchecking dictionary
261,888 users
Language: Українська (Ukrainian)
Firefox Language Pack for Українська (uk) – Ukrainian
258,171 users
257,146 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.
249,273 users
Language: Čeština (Czech)
Firefox Language Pack for Čeština (cs) – Czech
234,548 users
Language: 正體中文 (Traditional Chinese)
Firefox Language Pack for 正體中文 (zh-TW) – Traditional Chinese
230,521 users
German Dictionary
German Dictionary (new Orthography) for spellchecking in Firefox
228,931 users
Coupert - Automatic Coupon Finder & Cashback
Coupert automatically finds coupons, applies best coupon code at checkout & gives you cashback.
226,972 users
Language: Svenska (Swedish)
Firefox Language Pack for Svenska (sv-SE) – Swedish
221,494 users
219,992 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.
219,582 users
216,543 users
Language: Magyar (Hungarian)
Firefox Language Pack for Magyar (hu) – Hungarian
214,065 users
Language: Suomi (Finnish)
Firefox Language Pack for Suomi (fi) – Finnish
209,087 users
Startpage
This extension protects users from being tracked while allowing them to search the web in complete private mode.
208,566 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.
206,902 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
205,949 users
204,584 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.
203,467 users
Language: Ελληνικά (Greek)
Firefox Language Pack for Ελληνικά (el) – Greek
202,617 users