Show tabs like a tree.
Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.
Shows previews of linked articles on Wikipedia pages.
This Firefox add-on arranges tabs in a vertical rather than horizontal fashion. Hide and display manually the tab sidebar with a hotkey (Ctrl+Shift+V) or by clicking on the VTR icon.
I always enjoyed using Evernote and would love to have an easy access to its superb services. With this addon, you can simply press Alt+P or just click on the extension icon to jump to Evernote in a pinned tab.
This is a must-have extension for YouTube. You can: choose and apply video filters/effects to YouTube player in real-time, auto HD, Adblock, infinity mode, remove black bars around video, etc. More detail here: http://www.videoeffects.org
Simplifies the GitHub interface and adds many useful features.
Features: ✔ Ability to choose between 10 free Persian fonts; ✔ Use Custom Fonts (Upload any font file and use it); ✔ Built-in support for popular social media and most famous sites ✔ It is completely Open Source; ✔ It is Free of Charge;
Download any YouTube video in your favorite format.
Multiple label and account notifier for Google Mail (Gmail)
Theming experiment for Firefox Quantum and beyond.
Protects you from advertisements and tracking scripts.