The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.
View mobile or desktop versions of sites, by impersonating other browsers' useragent headers.
Browse faster—Preview links and images without leaving your current page or tab. Just mouseover any link and a preview window appears to display the content.
Recently called "THE Parental Control for Firefox"! FoxFilter is a personal content filter that helps block pornographic and other inappropriate content. All filtering features are free! Premium features available with small support fee.
Facebook Chat History Manager,save and view your chat history with friends on Facebook.
Tired of that boring default icon next to your bookmarks? This extension adds an interface allowing you to pick the icon for each of your bookmarks.
Shows a full size image when you hover over thumbnails on popular websites like Facebook, Twitter or Amazon.
Collections are groups of related add-ons that anyone can create and share.Explore Collections