Slickdeals
Always get the best price: find the best deals from Slickdeals and automatically apply coupons!
12,395 users
Romanian spellchecking dictionary
Romanian spellchecking dictionary for Firefox.
12,324 users
YouTube™ to MP3
Convert & download YouTube videos to MP3 with just one click!
12,279 users
Grammalecte [fr]
French grammar checker. Included: conjugation tool, lexicographer, text formatter and spelling dictionaries.
12,270 users
Google™ Translator
a handy multi-language translator built on top of Google translate.
12,247 users
PKCS11 module loader
Configures Firefox to use PKCS11 for authentication
12,243 users
Speed Dial 2 New tab page
Make your new tab page a true home for your work and free time. Speed Dial 2 is a new tab page extension with easy access to your favorite websites.
12,191 users
Karma | Online shopping, but better
Shop Smarter: Compare Prices, Get Coupons, Price alerts & Earn Cashback!
12,178 users
Tile Tabs WE
Take tabs from parent windows and arrange them in layouts of tiled sub-windows, using the toolbar button, context menu or keyboard shortcuts. Makes it easy to browse, compare or monitor multiple pages. Synchronize scroll. Save and re-open layouts.
12,140 users
MetaGer Search
Privacy has never been so easy. Sets MetaGer as your default search engine and manages search settings for you.
12,081 users
YT Ad Speedup - Skip Ads Faster
Automatically speed-up ads on videos. Save time, enhance viewing. Simple, fast, and user-friendly. Transform your browsing now!
12,050 users
View Manuals & Custom Web Search
Add View Manuals & Custom Web Search extension then click the icon on your toolbar to access Manual Search plus Yahoo Web Search.
12,039 users
Load Reddit Images Directly
Loads reddit images directly instead of redirecting to the HTML page containing the image. This works for i.redd.it, preview.redd.it, external-preview.redd.it and www.reddit.com/media urls.
12,039 users
Url to QrCode
an add-on for convert URLs to Qr Code.
12,000 users
Breez ClickOnce
Breez ClickOnce enables ClickOnce support in Mozilla Firefox. It is required to be able to launch any Windows Forms or Windows Presentation Foundation application that is based on Microsoft's ClickOnce technology.
11,989 users
YouTube Screenshot Button
Take screenshots from YouTube Videos & YouTube Shorts. The addon adds screenshot button & also enables Shift+A shortcut.
11,975 users
Flag Cookies
A cookie, and browser storage manager with cow powers!
11,943 users
SoundCloud Downloader
Directly download tracks on soundcloud.com. Creates metadata tags for Title, Artists, Album & Artwork. Allows to block reposts in your Stream feed and more.
11,897 users
ScriptCat
脚本猫,一个可以执行用户脚本的浏览器扩展,万物皆可脚本化,让你的浏览器可以做更多的事情!
11,887 users
Yandex Search
Adds Yandex for search engines
11,864 users
Blue Blocker
Blocks all Twitter Blue verified users on twitter.com
11,828 users
Private Video Downloader
Download videos from web sites and avoid compromising entries in your browser history.
11,789 users
FoxClocks
FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.
11,722 users
ReviewMeta.com Review Helper
ReviewMeta analyzes millions of reviews and helps you decide which to trust.
11,630 users
UltraWideo
The cross-browser extension that manipulates video aspect ratio to fit your entire screen. Take control over cinematic black bars. Netflix | Prime Video | Disney+ | Hulu | ESPN | + Many others...
11,600 users