Why Does Brave Browser Keep Deleting My Tab Group? Brave Browser may delete tab groups due to settings, session issues, or browser updates. Common causes include clearing browsing data on exit, disabling session restore, or running outdated versions of Brave. Extensions that manage tabs can also interfere with saved groups. To prevent this, ensure the “Continue where you left off” option is enabled, avoid clearing session data automatically, and update Brave regularly. Disabling conflicting extensions can also help maintain tab groups.