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More on How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites

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neilBar
neilBar
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Hi Firefox was working great until today's 58.0.1 auto update.

Safari and Chrome do not have the insecure certificate issue.

Although the article "How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites" offers a working solution (in my case: turn off "scan secured connections" in Avast) it doesn't explain whether its actually safe to do that. I guess its a valid idea to scan secure connections - or why did Avast include the feature?

So for me, and I am sure others, turning off its protection is scary

Before turning off Avast's "scan secured connections" , I first scanned with malware bytes and it just found the dreaded mac keeper which has been removed, scan is now clear.

SO, here's my question, the only way I can get Firefox to open sites like google [any https site I think] is to turn off Avast's "scan secured connections" - is it safe to do that? And why don't my other browsers (or for that matter Firefox up til today's update) have the issue?

Just so I can feel safe it would be great to get a simple answer to this PLEASE guys.

thanks so much

Hi Firefox was working great until today's 58.0.1 auto update. Safari and Chrome do not have the insecure certificate issue. Although the article "How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites" offers a working solution (in my case: turn off "scan secured connections" in Avast) it doesn't explain whether its actually safe to do that. I guess its a valid idea to scan secure connections - or why did Avast include the feature? So for me, and I am sure others, turning off its protection is scary Before turning off Avast's "scan secured connections" , I first scanned with malware bytes and it just found the dreaded mac keeper which has been removed, scan is now clear. SO, here's my question, the only way I can get Firefox to open sites like google [any https site I think] is to turn off Avast's "scan secured connections" - is it safe to do that? And why don't my other browsers (or for that matter Firefox up til today's update) have the issue? Just so I can feel safe it would be great to get a simple answer to this PLEASE guys. thanks so much