Container Tabs Sidebar is a Firefox addon designed for users who want to enhance their tab management experience. This tool allows users to view currently opened tabs in a sidebar, which are conveniently grouped by privacy containers. To access the sidebar, simply press the F2 key on your keyboard; if this shortcut doesn't work, you can open any sidebar using Ctrl+B and switch to the Container Tabs Sidebar from the dropdown menu.

Customization options are available through a dedicated settings page, which can be accessed by navigating to Addons (Ctrl+Shift+A), selecting ContainerTabsSidebar, and clicking on preferences. Additionally, users have the option to hide the original tab bar for a cleaner interface, making it easier to manage tabs while navigating the web.