LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.
FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
Piece together all of your add-on buttons and extras into your browser window in exactly the way you want them!
CoLT (short for "Copy Link Text") makes it easy to copy either a link's text, or both the link text and its URL in a format you specify. This non-invasive extension simply appears as context menu items when you right-click a link. Fully customizable!
Collector's Note 微博必备 - 通过使用 CoLT，复制超链接文字或者同时复制超链接及其文字（以你指定的格式）将变得更为容易。
Collections are groups of related add-ons that anyone can create and share.Explore Collections