IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
12,706 users
Swisscows
Adds Swisscows as the default search engine in your browser.
12,655 users
Speed Dial
Speed Dial allows you to add and manage bookmarks in the New Tab page and gives you an optional search experience.
12,648 users
Header Editor
Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
12,635 users
Simple YouTube to MP3/MP4 Converter and Downloader
Download youtube videos as mp3/mp4/ogg/webm fast and easy! Adding mirrors everyday to decrease any downtime! We monitor comments and work to fix any problems as soon as possible!
12,618 users
CSGO Trader - Steam Trading Enhancer
Extension to help with CS:GO trading, trade-lock countdown, in-browser inspect, doppler phases, prices, float values, etc
12,587 users
Steamcito: Steam con impuestos de Argentina 2024
Muestra todos los productos de la tienda de Steam con todos los impuestos de Argentina incluidos
12,522 users
SimilarWeb - Website Traffic Sources and Ranking
Get in-depth traffic and engagement stats for any website with a single click. See how popular a website is, its geography and traffic sources, .
12,509 users
Downie Extension
Allows to send links to Downie directly from Firefox.
12,450 users
Yandex Evolution
Popular Russian search engine by Yandex (Яndex, Яндекс)
12,421 users
Slickdeals
Always get the best price: find the best deals from Slickdeals and automatically apply coupons!
12,409 users
Grammalecte [fr]
French grammar checker. Included: conjugation tool, lexicographer, text formatter and spelling dictionaries.
12,404 users
Open in PDF Viewer
Easily open desired links in PDF viewer
12,352 users
Romanian spellchecking dictionary
Romanian spellchecking dictionary for Firefox.
12,228 users
PKCS11 module loader
Configures Firefox to use PKCS11 for authentication
12,206 users
Google™ Translator
a handy multi-language translator built on top of Google translate.
12,152 users
YouTube™ to MP3
Convert & download YouTube videos to MP3 with just one click!
12,141 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.
12,118 users
Karma | Online shopping, but better
Shop Smarter: Compare Prices, Get Coupons, Price alerts & Earn Cashback!
12,114 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.
12,051 users
MetaGer Search
Privacy has never been so easy. Sets MetaGer as your default search engine and manages search settings for you.
11,997 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.
11,966 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.
11,952 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!
11,952 users
Url to QrCode
an add-on for convert URLs to Qr Code.
11,914 users