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Capability of S/MIME support for OWA on Firefox

ian.hawkins
ian.hawkins
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Hello Firefox! I wanted to understand if there is a way for a user to login to Outlook WEB ACCESS. If you login to OWA on Firefox, is there a capability to have S/MIME active?

I have researched that this is possible on EDGE, and did some research on Google to see if this is common.

Would there be a FAQ or guide on this topic?

Hello Firefox! I wanted to understand if there is a way for a user to login to Outlook WEB ACCESS. If you login to OWA on Firefox, is there a capability to have S/MIME active? I have researched that this is possible on EDGE, and did some research on Google to see if this is common. Would there be a FAQ or guide on this topic?

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jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
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Hi Ian, it looks like you need an add-on from Microsoft to use S/MIME in your browser. If they have an add-on for Firefox, it appears to be a well-guarded secret.

Well, maybe it doesn't exist. The following article says:

S/MIME in Outlook on the web in Exchange 2019 is supported in Internet Explorer, Edge, Edge with Chromium, and Google Chrome.

https://learn.microsoft.com/en-us/exchange/policy-and-compliance/smime/smime-settings-for-owa?view=exchserver-2019