Capital One Shopping: Save Now
Capital One Shopping instantly applies coupon codes to your shopping cart, helps you snag exclusive rewards when you shop at stores you love and compares prices on Amazon to other popular retailers. It's kinda genius.
538,001 users
LastPass Password Manager
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
522,395 users
Malwarebytes Browser Guard
The fastest and safest web browsing experience. Secure your privacy by blocking trackers, blocking ads, and blocking malicious content.
503,828 users
491,787 users
Browsec VPN - Free VPN for Firefox
Unblock geographically restricted content and protect your IP with Browsec’s add-on. With this Firefox VPN, you can stay anonymous for an unlimited time! Use free remote servers to hide your location and access any content you want.
485,173 users
Language: Español (MX) (Spanish, Mexico)
Firefox Language Pack for Español (MX) (es-MX) – Spanish, Mexico
483,214 users
MetaMask
Ethereum Browser Extension
468,741 users
Kaspersky Protection 2021
Your protection on the Internet with extension from Kaspersky Lab
449,397 users
BetterTTV
Enhances Twitch and YouTube with new features, emotes, and more.
443,295 users
SaveFrom.net helper all-in-1 / youtube downloader
SaveFrom.net helper will enable you to download files from YouTube.com, FaceBook.com, Vimeo.com, Daylimotion.com, VK.com, Odnoklassnoki.ru, Soundcloud.com and more than 40 other just in one click.
441,665 users
432,950 users
Language: Español (AR) (Spanish, Argentina)
Firefox Language Pack for Español (AR) (es-AR) – Spanish, Argentina
392,007 users
English United States Dictionary
English United States (en-US) Dictionary as shipped with Firefox 115 ESR.
387,160 users
Language: Polski (Polish)
Firefox Language Pack for Polski (pl) – Polish
376,812 users
Firefox Multi-Account Containers
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs. Cookies are separated by container, allowing you to use the web with multiple accounts and integrate Mozilla VPN for an extra layer of privacy.
366,760 users
Language: 简体中文 (Simplified Chinese)
Firefox Language Pack for 简体中文 (zh-CN) – Simplified Chinese
363,251 users
Language: Español (CL) (Spanish, Chile)
Firefox Language Pack for Español (CL) (es-CL) – Spanish, Chile
359,968 users
Language: Italiano (Italian)
Firefox Language Pack for Italiano (it) – Italian
357,981 users
1Password: Password Manager
The best way to experience 1Password in your browser. Easily sign in to sites, generate passwords, and store secure information, including logins, credit cards, notes, and more.
318,906 users
I don't care about cookies
Get rid of cookie warnings from almost all websites!
312,479 users
Firefox Translations
Translate websites in your browser, privately, without using the cloud. The functionality from this extension is now integrated into Firefox.
311,531 users
Web Threat Shield
Keeps you safe when browsing the web by identifying and blocking dangerous websites.
311,370 users
Ecosia — The search engine that plants trees 🌱
This extension adds Ecosia.org as the default search engine to your browser — it’s completely free!
309,068 users
Language: العربية (Arabic)
Firefox Language Pack for العربية (ar) – Arabic
306,640 users
French spelling dictionary
Spelling dictionary for the French language.
296,309 users