firefox error accessing the web with ssl inspection enable

Hi Shay,

Thanks for reaching out to the Sophos Community Forum. 

May I ask if the device in question is a Windows or Mac device? Could you also let me know what version is displayed when checking the "About" section of the Sophos Endpoint UI? 

If you are using the EAP for Mac devices, our development team may want your feedback. Just let me know, and I'll help move this post over to our EAP forum for Macs. 

please enable this in firefox:

Sophos EP uses it's own Root certificate for MIM interception. I don't know if Sophos pushes the EP Root CA into the Firefox Cert store? But it pushes the certificate into the cert store of windows.

 Qoosh can you confirm if it does or not?

Thank you for mentioning this. Additional information on this setting can also be found on the following page. 
- Firefox and decryption

I am not aware of any immediate plans to push Sophos' certificate into the Firefox Cert store, but I will inquire internally and update you on whether this may be implemented in later versions.

Hi

Windows computer

Hi

It seemed that article Firefox and decryption solved the problem.

Thank You

I'm waiting for the customer to check.