Cost / License
- Free
- Open Source (GPL-2.0)
Platforms
- Mac
- Windows
- Linux
- Pale Moon

All-in-One Sidebar is described as '(AiOS) is a sidebar control, inspired by Opera . Click on the left edge of your browser window to open the sidebar and get easy access to all your panels' and is an app in the web browsers category. There are three alternatives to All-in-One Sidebar for Mac, Windows, Linux, Mozilla Firefox and Pale Moon. The best All-in-One Sidebar alternative is The Good 'ol Sidebar, which is both free and Open Source. Other great apps like All-in-One Sidebar are OmniSidebar and Sidebar Switch.

This add-on for Firefox provides a few options to make the sidebar more accessible and customize it.



Slim vertical button to toggle Firefox's (57+) sidebar on/off, on the left of browser. Firefox has native sidebar but no native switch to be touched on the edge of browser. This userChrome script provides experience like All-in-One Sidebar.
It improves upon the current features of All-in-One Sidebar and fixes a few bugs that were left broken in AiOS.