FossaGuard: Encrypt Gmail with S/MIME

Fossa Guard enables end-to-end S/MIME encryption on top of Gmail® complementing it with industry standard privacy

Total ratings

2.79 (Rating count: 14)

Review summary

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Well integrated into Gmail
  • Ability to sign emails with generated or own certificates
  • Provides a free S/MIME implementation for Gmail
Cons
  • Certificates not recognized as valid by mail clients (e.g., Thunderbird)
  • Complexity and difficulty in setup
  • Limitations on certificate duration and attachment sizes
  • Issues with email address entry not functioning correctly
  • Extension doesn't always work as expected (e.g., fails to send emails)
Most mentioned
  • The certificate with which it is signed is not recognized as valid
  • It doesn't work for certain users or scenarios
  • Difficulties with interface when entering recipient emails
  • Need for trusted CA certificates for full functionality
  • Positive comments about integration and function when it works properly
See reviews for FossaGuard: Encrypt Gmail with S/MIME on Chrome Web Store
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User reviews

Recent rating average: 2.20
All time rating average: 2.79
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Rating filters

5 star
9% (2)
4 star
36% (8)
3 star
18% (4)
2 star
18% (4)
1 star
18% (4)
Date Author Rating Lang Comment
2022-06-10
Franci Šacer
Worked before but now it cannot detect logged in user in gmail it seems, cause it says I am logged in with null
2022-06-10
Franci Šacer
en Worked before but now it cannot detect logged in user in gmail it seems, cause it says I am logged in with null
2021-01-19
Carlos C.
Puedes leer la valoración en español mas abajo. [ENGLISH] The good ... -You can sign the emails with the certificate that they generate and it is well integrated into Gmail. - You can include your own certificate (I haven't tried it) The bad ... - The certificate with which it is signed is not recognized as valid by mail clients (for example Thunderbird) because it is not issued by a trusted CA. Not good not bad ... - The permits that must be given are many, but at least they seem reasonable. - I don't trust uploading my own certificate to a server. The summary... - If the certificates were issued by a trusted CA I would use it, but sending emails that carry a certificate notice seems ugly to me. I can't ask my senders to include a CA on their computers because I'm going to send them emails. [ESPAÑOL] Lo bueno ... -Puedes firmar los correos con el certificado que te generan y está bien integrado en Gmail. - Puedes incluir tu propio certificado (no lo he probado) Lo malo ... - El certificado con el que se firma no es reconocido como válido por los clientes de correo (por ejemplo Thunderbird) porque no lo emite una CA de confianza. Ni bueno ni malo ... - Los permisos que hay que darle son muchos, pero al menos parecen razonables. - No me fio de subir un certificado emitido para mi email por una CA de confianza a un servidor. Debería poder dar la opción de firmar en local. El resumen... - Si los certificados estuviesen emitidos por una CA de confianza la usaría, pero enviar emails que llevan un aviso de certificado me parece feo. No puedo pedirle a mis remitentes que incluyan una CA en sus equipos porque yo les vaya a enviar emails.
2021-01-19
Carlos C.
es Puedes leer la valoración en español mas abajo. [ENGLISH] The good ... -You can sign the emails with the certificate that they generate and it is well integrated into Gmail. - You can include your own certificate (I haven't tried it) The bad ... - The certificate with which it is signed is not recognized as valid by mail clients (for example Thunderbird) because it is not issued by a trusted CA. Not good not bad ... - The permits that must be given are many, but at least they seem reasonable. - I don't trust uploading my own certificate to a server. The summary... - If the certificates were issued by a trusted CA I would use it, but sending emails that carry a certificate notice seems ugly to me. I can't ask my senders to include a CA on their computers because I'm going to send them emails. [ESPAÑOL] Lo bueno ... -Puedes firmar los correos con el certificado que te generan y está bien integrado en Gmail. - Puedes incluir tu propio certificado (no lo he probado) Lo malo ... - El certificado con el que se firma no es reconocido como válido por los clientes de correo (por ejemplo Thunderbird) porque no lo emite una CA de confianza. Ni bueno ni malo ... - Los permisos que hay que darle son muchos, pero al menos parecen razonables. - No me fio de subir un certificado emitido para mi email por una CA de confianza a un servidor. Debería poder dar la opción de firmar en local. El resumen... - Si los certificados estuviesen emitidos por una CA de confianza la usaría, pero enviar emails que llevan un aviso de certificado me parece feo. No puedo pedirle a mis remitentes que incluyan una CA en sus equipos porque yo les vaya a enviar emails.
2018-07-28
Nathan Kaiser
it just doesn't work. It's just too complicated. Tried this, tried that, free version, paid - it would just never work, always something new coming up. Not mature yet.
2018-07-28
Nathan Kaiser
en it just doesn't work. It's just too complicated. Tried this, tried that, free version, paid - it would just never work, always something new coming up. Not mature yet.
2018-04-12
Marco Uras
beim schreiben der Empfänger-Email ploppt nur kurz ein Fenster auf um das Konto auszuwählen. So kann man keine Mail schreiben.
2018-04-12
Marco Uras
de beim schreiben der Empfänger-Email ploppt nur kurz ein Fenster auf um das Konto auszuwählen. So kann man keine Mail schreiben.
2017-11-01
William Stewart
I had high hopes for this but entering email addresses by hand (instead of them popping up as they do in Gmail) was an issue, complicated by the email address always showing one less letter than I actually typed. That was quite annoying. ***UPDATE: This aspect suddenly started working properly after exiting my browser and restarting it, and logging in to Chrome again. *** I then attempted to send an email from within the extension, and it warned me that it would be sent unencrypted and asked me if I wanted to continue. I chose to continue but it then failed telling me that the recipient wasn't secure (diff wording). So it could not even send an email out insecurely. This has proven to be frustrating and a waste of my time. Too bad.
2017-11-01
William Stewart
en I had high hopes for this but entering email addresses by hand (instead of them popping up as they do in Gmail) was an issue, complicated by the email address always showing one less letter than I actually typed. That was quite annoying. ***UPDATE: This aspect suddenly started working properly after exiting my browser and restarting it, and logging in to Chrome again. *** I then attempted to send an email from within the extension, and it warned me that it would be sent unencrypted and asked me if I wanted to continue. I chose to continue but it then failed telling me that the recipient wasn't secure (diff wording). So it could not even send an email out insecurely. This has proven to be frustrating and a waste of my time. Too bad.
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