Move your tabs to the side of your browser window.
Shows previews of linked articles on Wikipedia pages.
Take tabs from a parent window and arrange them in a layout of tiled sub-windows, using the toolbar button, context menu or keyboard shortcuts. Makes it easy to browse, compare or monitor multiple pages. Synchronize scroll. Save and re-open layouts.
The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube™ and Beyond. It works for all known video sites such as YouTube, Vimeo, Dailymotion, Hulu, Metacafe, YouKu, etc.
Squared tabs, application menu, add-on bar, small button view and many more 'old' features for 'Firefox 29-56', not for Firefox 57+! Release builds Beta builds
Australis was the code name for the current Firefox theme, it aimed to make a great browser look awesome. Now you can go one step further and also make it feel awesome to use!
Bring your bookmarks into view with just a gesture. Move the sidebar across the screen. Open a different sidebar by just clicking its title. And more! Keeps your sidebar simple and quick to access!
'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions. Beta builds on versions page!
Moves the reload bar to the address bar like in Firefox before 57.
Open and download links with IDM (Internet Download Manager) - the fastest downloader, compatible with new Firefox Quantum 57+.
Allows you to specify the time to restart browser.