Some web browsers allow users to pin browser tabs such that they are positioned at an extreme end of a tab of strips. Some websites also include features that detect when a user attempts to close a tab of that website and require user confirmation to prevent accidental tab closure. However, pinned tabs can still be closed accidentally, or can be navigated away from. This disclosure describes a web browser that enables users to lock a tab. When the user attempts to close a locked tab, a prompt is shown requesting user confirmation to close the tab. Similarly, confirmation is sought if the user attempts to close a browser window (or a remote desktop session with a locked tab within it) that includes one or more locked tabs. If the user clicks a link within a locked tab that causes the browser to navigate to a different website, confirmation for the navigation is sought. The techniques prevent accidental closure of locked tabs as well as navigation away from locked tabs. The locked tab may be indicated by a suitable visual cue, e.g., a lock icon. Optionally, locked tabs may also be pinned and automatically reopened when the user reopens the browser application.
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Wang, Xiaohan, "Web Browser with Locked Tabs to Prevent Accidental Tab Closure", Technical Disclosure Commons, (July 13, 2023)