2FA Local by John
Locally-stored, encrypted TOTP authenticator.
ExperimentalExperimental
Available on Firefox for Android™Available on Firefox for Android™
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About this extension
The goal was simple: a convenient yet reasonably secure TOTP authenticator built right into Firefox as an extension. I built it for my own use, but others might find it useful too. LLMs were used to help verify parts of the extension, look for issues, and so on.
Please always back up your TOTP codes, and don't rely on this extension alone. I recommend storing your codes in a dedicated manager like KeePassXC and mirroring them in the extension. And needless to say, back up your KeePassXC database too.
Please always back up your TOTP codes, and don't rely on this extension alone. I recommend storing your codes in a dedicated manager like KeePassXC and mirroring them in the extension. And needless to say, back up your KeePassXC database too.
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Permissions and data
Required permissions:
- Input data to the clipboard
- Display notifications to you
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 0.1.1
- Size
- 1.23 MB
- Last updated
- 3 days ago (Jun 7, 2026)
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- Version History
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