Dark YouTube theme - apply Black Youtube & Facebook Skin. Dark YouTube theme protects eyes by changing Youtube & FB colors to black
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.
Shows previews of linked articles on Wikipedia pages.
Move your tabs to the side of your browser window.
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
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!
Short, Vim-style keyboard shortcuts for browsing and navigation, for a near mouseless experience.
Re-impliments the google image, "View Image" and "Search by Image" buttons.
NoSquint is no longer maintained. :(
Tab browsing with an added boost.
Translate selected text with Google Translate. Help you quickly view translations easily by selected the text. Support 90+ language and compatible with new Firefox Quantum 57.