FossaGuard: Encrypt Gmail with S/MIME

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Fossa Guard enables end-to-end S/MIME encryption on top of Gmail® complementing it with industry standard privacySecure e-mailing with Gmail becomes easy on Desktop and Android. Encrypt and Sign your Gmail messages with industry standard - S/MIME using Chrome, Yandex or Firefox browsers.

Fossa Server and Fossa Guard web extension provide secure mailing solution on top of Gmail (TM) following S/MIME specification.

Fossa Guard generates key pair within your browser then Fossa Server securely supplies you with personal X.509 certificate upon Certificate Signing Request (CSR) so that your private key always stays with you.

Use Fossa Guard extension to sign or to encrypt your email with X.509 certificate. The certificate is free and stays valid for 3 months (beta phase limitation).

Fossa Guard has own autonomous Compose dialog to avoid unsecured email content auto-saving.

Your private key is protected by pass-phrase and is replicated alongside with trusted certificates via your protected local user storage. Use Fossa Guard to get details on certificates in your repository.

Please refer to Privacy policy at https://fossa.me/policy