Most web browsers feature a horizontal strip of tabs at the top of the window, which can become cluttered when multiple tabs are open, often reducing visibility to just small favicons. A more efficient solution is to adopt a vertical tab layout in a sidebar, a concept first popularized by the Arc browser. This innovation has since influenced major browsers like Chrome, Edge, Firefox, and the Zen browser, allowing users to benefit from a more organized and spacious browsing experience.
Why Vertical Tabs Are More Effective
Websites are typically designed for vertical reading, yet most devices feature widescreen displays. This mismatch often results in wasted horizontal space, while vertical space remains underutilized. By relocating the tab bar to a sidebar, users can maximize their viewing area and easily manage numerous tabs--up to 30 or more--without losing track of their content.
Activating Vertical Tabs in Google Chrome
As of April 2026, Google Chrome introduced vertical tabs, making it the last major browser to do so. To enable this feature, ensure your browser is updated, then navigate to Settings > Appearance > Tab strip position and select Side. Your tabs will then be displayed vertically, freeing up space at the top of the window. Chrome also offers a compact mode, allowing you to show only favicons for a cleaner look.
Activating Vertical Tabs in Firefox
Firefox provides a flexible sidebar where users can add features like AI chatbots and access tabs from other devices. To enable vertical tabs, go to Settings > General > Browser Layout > Vertical Tabs. The sidebar can also be customized with shortcuts, and users can choose to display only favicons in a compact mode.
Activating Vertical Tabs in Microsoft Edge
In Microsoft Edge, vertical tabs can be activated by heading to Settings > Appearance > Tab Actions > Show vertical tabs. This feature works similarly to Chrome, allowing users to toggle the sidebar from the top toolbar.
Zen Browser: Vertical Tabs by Default
For those who prefer vertical tabs, the Zen browser, currently in beta, offers this feature by default. Built on Firefox, Zen prioritizes privacy and speed, utilizing a sidebar interface that supports organized workspaces for different projects and interests. Users can also hide the sidebar in compact mode, optimizing their browsing experience.
Adopting vertical tabs represents a significant evolution in how we interact with web browsers, potentially reshaping our online navigation and productivity in the future.