German Dictionary
German Dictionary (new Orthography) for spellchecking in Firefox
249,585 users
Language: 正體中文 (Traditional Chinese)
Firefox Language Pack for 正體中文 (zh-TW) – Traditional Chinese
245,157 users
Coupert - Automatic Coupon Finder & Cashback
Coupert automatically finds coupons, applies best coupon code at checkout & gives you cashback.
244,358 users
Language: Svenska (Swedish)
Firefox Language Pack for Svenska (sv-SE) – Swedish
236,837 users
235,352 users
231,072 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.
230,876 users
Language: Magyar (Hungarian)
Firefox Language Pack for Magyar (hu) – Hungarian
227,337 users
Cookie AutoDelete
Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Keep the ones you trust (forever/until restart) while deleting the rest. Containers Supported
225,277 users
Language: Ελληνικά (Greek)
Firefox Language Pack for Ελληνικά (el) – Greek
224,803 users
Language: Suomi (Finnish)
Firefox Language Pack for Suomi (fi) – Finnish
224,220 users
221,599 users
Startpage
This extension protects users from being tracked while allowing them to search the web in complete private mode.
219,493 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. V3.3.1 has 140 000+ new words and also fixes.
213,484 users
Language: Català (Catalan)
Firefox Language Pack for Català (ca) – Catalan
213,300 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
212,063 users
ClearURLs
Removes tracking elements from URLs
211,940 users
DownThemAll!
The Mass Downloader for your browser
211,605 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.
209,965 users
Language: Norsk Bokmål (Norwegian Bokmål)
Firefox Language Pack for Norsk Bokmål (nb-NO) – Norwegian Bokmål
209,538 users
FoxyProxy Standard
FoxyProxy is an open-source, advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. No paid accounts are necessary; bring your own proxies or buy from any vendor. The original proxy tool, since 2006.
208,683 users
Language: Dansk (Danish)
Firefox Language Pack for Dansk (da) – Danish
208,343 users
Language: 한국어 (Korean)
Firefox Language Pack for 한국어 (ko) – Korean
204,043 users
Tree Style Tab
Show tabs like a tree.
201,931 users
Browsing Protection by F-Secure
Extension for protecting encrypted browsing with security products by F-Secure.
197,302 users