High security email encryption for Gmail, Yahoo, and Outlook online. PassLok is in no way associated with those services.
Easy to use, powerful extension, which includes message hiding, forward secrecy and attachments, and runs also on Chrome.

PassLok for Email: High Security Email Encryption
PassLok for Email is a Firefox add-on that offers easy-to-use, end-to-end secure encryption for email, real-time chat, and file encryption. It does not rely on servers, ensuring immunity to hacking or government intervention.
Add-on stats
Manifest V3
Firefox on Android: Yes
Permissions:
- storage
- alarms
Host permissions:
- https://mail.google.com/*
- http://mail.google.com/*
- https://google.com/*
- http://google.com/*
- http://*.mail.yahoo.com/*
- https://*.mail.yahoo.com/*
- http://*.live.com/*
- https://*.live.com/*
Size: 210.12K
Email: fr*****@gmail.com
URLs: Website
Full description: See detailed description
Ranking
User reviews
I think this is a great idea and implementation. I need to test it further. I don't know about how secure it is but I think that simetrical encryption is very easy to use for end users, assymetrical one is too much complicated for normal users.
by Hernan, 2024-01-17
Add-on safety
Risk impact
PassLok for Email requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Request access to the following domains: google.com, yahoo.com, live.com
- High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of PassLok for Email. Use it at your own risk.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
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