Wednesday, June 8, 2022

Fossa Guard Pro goes free

Fossa Team decided to contribute a small piece to public security making pro version of S/MIME web extension for Gmail freely available for all kind of use.

Fossa Guard Pro 1.0.3 is available at Chrome Web store supports only Chrome and has a rich set of features like

  • hidden subject, 
  • local search inside encrypted messages 
  • ... more info at our Blog 

Fossa Guard Free version is also available at Chrome Web store and has experimental support for Firefox, Yandex including their mobile versions.

Please note that Fossa server and Fossa certificates won't be available in both versions, so you can use S/MIME certificates frpom other vendors or use self-signed.


Since 2016 it was a great journey for us making this solution robust and capable to address secure emailing using S/MIME standard.

For the moment we officially stop any activities on the project though continue to support users.

Thanks for all who supported and gave interest (among them were  companies like Google, PWC, Greenpeace).


If you have any clarifications or questions please email us to: fossa.guard@gmail.com