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.
Show tabs like a tree.
Highly customizable text highlighter with different colors and save option for later visits. Parts of the underlying WebExtensions API are not supported on Android and ESR.
Move your tabs to the side of your browser window.
让你瞬间进入沉浸式阅读的扩展，Chrome 好评率 99% 的扩展现已来到了 Firefox！
Simplifies the GitHub interface and adds many useful features.
This add-on hides suggested videos on YouTube. Specifically, it hides the homepage and the videos that appear on the sidebar. Motivated by an attempt to stymie the "YouTube rabbit hole." https://github.com/emumoo/remove-youtube-suggestions
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;
Adblock Features: + Adblock on every Youtube Video + Malware- and Adblock + Performance enhancement in browsing speed. + Adblock of ads, banners and pre-rolls on Youtube. + No more Banner, PopUp, PopUnder + INSTALL ADBLOCK
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
Hacker News Enhanced.
Makes the layout of Google News dark while retaining the original feel.