Vertigo Tabs

Vertigo Tabs is a Firefox extension designed to transform your browsing experience by introducing vertical tabs using the SideBar API. Compatible with Firefox 55 and above, it respects your system's theme settings including colors and font sizes, ensuring a seamless and visually consistent interface.

With a focus on simplicity, Vertigo Tabs works out-of-the-box with sane defaults, eliminating the need for complex setup or configuration. While it currently does not support drag-and-drop of files or URLs directly onto the sidebar, it offers a clean and efficient tab management system. Note that due to WebExtensions limitations, hiding the horizontal tab bar requires manual CSS adjustments in the Firefox profile.