Language: Español (ES) (Spanish, Spain)
Firefox Language Pack for Español (ES) (es-ES) – Spanish, Spain
678,095 users
TWP - Translate Web Pages
Translate your page in real time using Google or Yandex. It is not necessary to open new tabs. Now works with the NoScript Extension.
674,725 users
Norton Safe Web
Protects your browser from online threats.
664,053 users
Language: Русский (Russian)
Firefox Language Pack for Русский (ru) – Russian
646,125 users
Return YouTube Dislike
Returns ability to see dislike statistics on youtube
624,595 users
Easy Youtube Video Downloader Express
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
599,837 users
Language: Português (BR)
Firefox Language Pack for Português (BR) (pt-BR) – Brazilian Portuguese
573,089 users
LastPass Password Manager
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
563,660 users
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.
560,182 users
557,519 users
Enhancer for YouTube™
Take control of YouTube and boost your user experience!
552,325 users
Malwarebytes Browser Guard
The fastest and safest web browsing experience. Secure your privacy by blocking trackers, blocking ads, and blocking malicious content.
527,579 users
Language: Español (MX) (Spanish, Mexico)
Firefox Language Pack for Español (MX) (es-MX) – Spanish, Mexico
499,668 users
490,201 users
MetaMask
Ethereum Browser Extension
489,055 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.
480,587 users
Kaspersky Protection 2021
Your protection on the Internet with extension from Kaspersky Lab
474,199 users
AdBlocker for YouTube™
Remove all annoying ads from YouTube.
457,674 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.
454,236 users
BetterTTV
Enhances Twitch and YouTube with new features, emotes, and more.
450,929 users
SponsorBlock - Skip Sponsorships on YouTube
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. Other browsers: https://sponsor.ajay.app
428,843 users
English United States Dictionary
English United States (en-US) Dictionary as shipped with Firefox 115 ESR.
414,765 users
Language: Español (AR) (Spanish, Argentina)
Firefox Language Pack for Español (AR) (es-AR) – Spanish, Argentina
412,949 users
Language: Polski (Polish)
Firefox Language Pack for Polski (pl) – Polish
394,322 users
Language: Español (CL) (Spanish, Chile)
Firefox Language Pack for Español (CL) (es-CL) – Spanish, Chile
383,812 users