TabLock - Password Tab Locker by Kreios
Lock any tab with a password. Auto-lock social sites including sub-pages. Re-locks after restart. All data stays on this device.
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About this extension
Lock any tab with a password. Auto-lock social sites including posts and pages. Everything re-locks after restart.
Features:
- Lock this tab or lock all tabs from the toolbar popup
- Auto-lock list with Facebook, Instagram, X/Twitter, TikTok and more, plus your own custom domains (subdomains and all paths covered)
- Unlock once per session: scrolling feeds like Reels stays unlocked until restart, inactivity timeout, or manual re-lock
- Inactivity auto re-lock (configurable, 0 to disable)
- Password + recovery key, attempt cooldown against guessing
- 100% local: password stored only as a PBKDF2 hash, no accounts, servers, or analytics
Limitations (by Firefox design): system pages such as about:addons cannot be locked, and disabling the extension in about:addons bypasses it.
Features:
- Lock this tab or lock all tabs from the toolbar popup
- Auto-lock list with Facebook, Instagram, X/Twitter, TikTok and more, plus your own custom domains (subdomains and all paths covered)
- Unlock once per session: scrolling feeds like Reels stays unlocked until restart, inactivity timeout, or manual re-lock
- Inactivity auto re-lock (configurable, 0 to disable)
- Password + recovery key, attempt cooldown against guessing
- 100% local: password stored only as a PBKDF2 hash, no accounts, servers, or analytics
Limitations (by Firefox design): system pages such as about:addons cannot be locked, and disabling the extension in about:addons bypasses it.
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Permissions and data
Required permissions:
- Access browser tabs
- Access browser activity during navigation
Optional permissions:
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.0
- Size
- 29.37 KB
- Last updated
- 8 days ago (Sep 21, 2026)
- Related Categories
- License
- MIT License
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
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