Tabpinning

Tabpinning is a user interface feature in web browsers and other tabbed applications that fixes a tab to a dedicated area of the tab bar, keeping it open and easily accessible. Pinned tabs typically shrink to a small icon-only representation—often just the site favicon—and are placed at the left end of the tab strip. The feature helps reduce tab clutter and protects important pages from accidental closure.

In practice, a tab is pinned by selecting "Pin tab" from a context menu or using a browser-specific command. A pinned tab usually cannot be closed with the standard close button and can be moved only by dragging as with other tabs. Unpinning restores the tab’s normal size, close button visibility, and standard tab ordering. Pinned tabs commonly persist across browser restarts depending on the product and user settings, but behavior varies.

Benefits include quick access to frequently used sites, a tidier tab bar, and decreased risk of losing critical tabs. Limitations include limited space for pinned content if many tabs exist, compatibility of some sites with pinned mode, and differences in how browsers save and restore pinned tabs.

Supported by major browsers such as Google Chrome, Mozilla Firefox, Microsoft Edge, and Opera, though micro-details differ: some display only the favicon and pin tabs to the left; others allow unpinning and reordering. Tabpinning is one of several tab-management features used to organize multitasking sessions.