Fossa Guard enables end-to-end S/MIME encryption on top of Gmail® complementing it with industry standard privacy
FossaGuard: Encrypt Gmail with S/MIME Extension
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
Source Manifest.json
Similar Extensions
Encrypt any email with CipherMail 1,000+ 6 ★ 683KiB
Lockmagic Gmail Encryption 1,000+ 10 ★ 1.62MiB
PassLok Universal 1,000+ 0 ★ 224KiB
SendSafely Encryption for Chrome and Gmail 1,000+ 15 ★ 1.48MiB
E-mail Encryptor for GMail 1,000+ 4 ★ 287KiB
KodaMail 1,000+ 1 ★ 980KiB
Message Secure Send 1,000+ 0 ★ 87.51KiB
ZixEncrypt Email Encryption 1,000+ 0 ★ 679KiB
HID Credential Management Extension 1,000+ 13 ★ 40.67KiB
FlowCrypt: Encrypt Gmail with PGP 1,000+ 362 ★ 3.39MiB
AnyCrypt 1,000+ 2 ★ 1.13MiB
TLSA Validator 1,000+ 23 ★ 95.55KiB
Inline PGP 1,000+ 3 ★ 3.48MiB
Mymail-Crypt for Gmail™ 1,000+ 150 ★ 427KiB
PassLok for Email 1,000+ 2 ★ 202KiB
Keybase 1,000+ 65 ★ 434KiB
DNSSEC Validator 1,000+ 28 ★ 87.29KiB
Easy KeyBase.io Encryption 1,000+ 6 ★ 829KiB
Certificate Info 1,000+ 20 ★ 18.09KiB
Save as MHTML (MIME HTML) 1,000+ 10 ★ 19.23KiB
Cloudpath Certificate Generator 1,000+ 11 ★ 270KiB
Local PGP - Browser Encryption and Decryption 1,000+ 6 ★ 193KiB
XQ Secure Gmail 1,000+ 7 ★ 615KiB
Mailvelope 1,000+ 433 ★ 2.97MiB
User reviews
Franci Šacer (ID: 000000f6c0756103) Voted 3 ★ - Updated 06/10/2022
Carlos C. (ID: 0000000a9197b07a) Voted 3 ★ - Updated 01/19/2021
Nathan Kaiser (ID: 00000085d4bc7bdd) Voted 2 ★ - Updated 07/28/2018
Marco Uras (ID: 000000dd37135151) Voted 1 ★ - Updated 04/12/2018
William Stewart (ID: 000000150ff19f2e) Voted 2 ★ - Updated 11/01/2017