Explore powerful tools and features to customize Firefox and make the browser all your own.
Image Search Options provides a set of highly customizable reverse image search context menu options.
Send the page you are currently viewing to your mobile device. QR codes are generated instantly in browser and never leave your computer. Implemented with WebExtensions API and compatible with Firefox 57+.
View archived and cached versions of web pages on 10+ search engines, such as the Wayback Machine, Archive.is, Google, Bing, Yandex, Gigablast, WebCite, Sogou, Memento, Naver and Yahoo Japan.
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously.
Left click reopens the last closed tab. Right click to see the list of recently closed tabs.
Ad Blocking, remastered. Incognito Adblocker took all of the best ad blocking and privacy protection features you’d expect in an adblocker extension and advanced them to create the best adblock extension yet.
Play game Flappy Bird when you open a new tab. Try to fly the bird as far as you can without hitting a pipe!
Best adblock for YouTube, faster and lighter than other ad blockers. It automatically hides all kind of YouTube ads (YouTube banner ads and YouTube video ads).
The Complete YouTube Downloader, Download every YouTube Video in MP3, MP4 and WEBM (Up to 8K! and HDR), M4A and 3GP Formats. Also Subtitles and Thumbnails can be downloaded!
Download videos while browsing Internet. This simple video downloader tool is free, easy to use and very fast.
Privacy Possum monkey wrenches common commercial tracking methods by reducing and falsifying the data gathered by tracking companies.
BlockSite is an extension, which automatically blocks websites of your choice. Additionally, this extension will disable all hyperlinks to these websites, by just displaying the link text without the clicking functionality.