Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension. Now Available for: Firefox, Thunderbird and SeaMonkey!
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, Twitch, Dailymotion, Facebook, Hulu, Metacafe, YouKu, etc.
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.
Dark YouTube theme - apply Black Youtube & Facebook Skin. Dark YouTube theme protects eyes by changing Youtube & FB colors to black
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!
Kapow! Fwoosh! Zingg!
Open With PDF Reader addon send PDF links directly to a PDF viewer like Adobe Acrobat Reader. Compatible with new Firefox Quantum 57
Create, modify and quickly change tab groups. Inspired by the old add-on "Tab Groups" :)
A beautiful New Tab page with many customisable backgrounds and widgets.