Access to the complete Firefox's proxy settings right from a toolbar panel WebExtension Version: https://addons.mozilla.org/en-US/firefox/addon/proxy-switcher-and-manager/
Use native tab discard method to automatically reduce memory usage of inactive tabs
Manage and switch between multiple proxies quickly and easily through profiles
Uninstall an extension and clean its fingerprints (such as stored preferences)
Easily access to the reader-view from right click context menu
Turn off DASH support from HTML5 video element. Enabling the extension causes YouTube (and other HTML5 video players) to fully load video files.
Scrobbling YouTube music videos to Last.fm
strips away clutter like buttons, background images, and changes the page's text size, contrast and layout for better readability. Note: This extension uses the standalone version of Mozilla's Readability library.