Most Popular Extensions
Invite John Cena to your web pages.
PostBuddy Posting Utility Requires Restart
A utility for abstracting text passages from web pages, news, blogs and articles, and then reformatting and editing the text for your own news reporting, criticism, review, research and private study articles.
TotalStatistics is an addon for people who love Math & Statistics. This records statistics on various different things, including the number of tabs you have opened and closed, and the time Firefox has ever been open for!
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Close tabs before getting too many; Forcibly limits the number of tabs. You can change the limit.
Avoid mobile sites when you're on a non-mobile browser. If someone sends a mobile link like https://m.reddit.com/stuff for example, it will redirect you to https://www.reddit.com/stuff. NoMobile avoids you the hassle of dealing with mobile sites.
Advanced MuteLinks (MuteLinks fork) with Blacklist and Whitelist
REAltitude Screen Sharing Plugin
Automates the login process on several FAU (Friedrich-Alexander-Universität Erlangen-Nürnberg) websites.
Allow pasting links into the New Tab toolbar button.
This add-on can send a browser link with one click to pyLoad
Notifies you when there's a new episode of your favourite anime available.
Whenever user tries to open settings page, master password is required. Acts like a parental control while sharing computer with others. Users are required to set master password.
Users are required to set Master password
This add-on provides access to Desktop Sharing, Remote Control, Outlook Address Book, and MS Office Documents when using ConferenceManager with Firefox.
Removes evil URL parameters such as Google Analytics' utm parameters
This addon lets you edit any page! Press Shift+Alt+D to toggle document.designMode = 'on'/'off'. The logo is CC0 from here https://pixabay.com/en/pencil-pen-orange-red-eraser-190586/