Tab Harbor

Save, organize, restore, and securely sync browser sessions and native tab groups.

Tab Harbor keeps your browser workspace safe by saving open windows, tabs, and native tab groups. Restore an entire session after an accidental closure, browser restart, or workspace change—or choose exactly which tabs you want to reopen. Tab Harbor preserves tab order, group names, group colors, collapsed states, pinned tabs, and muted tabs. FREE FEATURES • Automatic local backups every 1, 15, 30, or 60 minutes • Manual named and protected sessions • Full-page Session Manager • Search, filter, sort, rename, duplicate, protect, and delete sessions • Restore complete sessions or selected individual tabs • Preserve native tab groups and their settings • Dock a window by saving it before closing its unpinned tabs • Find and safely close duplicate tabs • Light, Dark, and Follow Browser/System themes • Import and export portable JSON backups • Automatic recovery checkpoint before every restoration • Resilient restoration that continues if an individual tab cannot be reopened OPTIONAL PRO FEATURES • Scheduled workspace restoration • Restore workspaces when the browser starts • Encrypted session synchronization between browser profiles • Server-verified subscription access with an offline grace period PRIVACY AND SECURITY Your local sessions remain in your browser’s extension storage unless you choose to export a backup or use encrypted Pro synchronization. When encrypted sync is used, session data is compressed and encrypted locally with AES-256-GCM before being sent to the cloud. Tab titles and website addresses are never sent to the cloud in readable form. Your sync passphrase is not stored by Tab Harbor and cannot be recovered. Tab Harbor does not use advertising or behavioral tracking. Subscription verification is provided through ExtensionPay, and payment processing is handled by Stripe. Tab Harbor does not receive or store your payment-card information. Private and incognito windows are intentionally excluded.