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Avast is blocking FireFox from registering sites as secure

  • 4 replies
  • 1 has this problem
  • 39 views
  • Last reply by MonkeiShine

FireFox is giving me the “this website isn’t secure” message. The details in the help article for disabling the http scanning don’t match any part of the Avast window that comes up. There is no “menu” offered etc.

FireFox is giving me the “this website isn’t secure” message. The details in the help article for disabling the http scanning don’t match any part of the Avast window that comes up. There is no “menu” offered etc.

Chosen solution

"Scan secured connections" is where you want to check. With insecure (HTTP) connections, Firefox doesn't check any certificates; with secure (HTTPS) connections, Firefox checks that the certificate is valid for the server you want to visit. That's where the fake site certificates generated by a "man in the middle" cause issues.

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All Replies (4)

Hi MonkeiShine, what kind of system has this problem? For example, Mac, Windows, Linux?

The Avast feature that you would need to find is called the Web Shield. If the Avast control panel has changed, you hopefully can still poke around and find that feature.

Thanks for replying. I'm on a Mac. I found the webShield earlier but it doesn't appear to give me any options to change how it interacts with http. The only options it seems to give me are: "report potentially unwanted programs" "enable IPv6" "Scan secured connections"

Thanks!

Chosen Solution

"Scan secured connections" is where you want to check. With insecure (HTTP) connections, Firefox doesn't check any certificates; with secure (HTTPS) connections, Firefox checks that the certificate is valid for the server you want to visit. That's where the fake site certificates generated by a "man in the middle" cause issues.

Thanks for ur help!