C Stamp On the "Add certificate Exception" warning, what to check to keep Thunderbird's security default: "Confirm security exception" or "Cancel?"

When the dialog box "Add certificate exception" comes up with the warning "You are about to override how Thunderbird identifies this site," which is the safe box to check?
I want to stay with Thunderbird's security system. Do I check "Confirm Security Exception" or "Cancel"?

Unfortunately, some sites do not maintain their certificates properly. So basically if you trust the site, you can confirm the exception. If it is an unknown site or you are not sure about it, then Cancel. Of course if you don't confirm the exception, you won't be able to see/use the site.

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    This is not the GPO approach but an alternative: [https://support.mozilla.org/en-US/questions/984237]
    Other resources:
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    *There are also a number of admins that answer questions on their mailing list for the ESR (enterprise) version of Firefox. [https://www.mozilla.org/en-US/firefox/organizations/]

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  • The "add exception" block isn't active

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  • Firefox will no longer let me access my Yahoo mail due to a certificate problem, and it will not let me add an exception. How do I get into my email?

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    if not <sub>Edited out by a Moderator, please do not advertise for work</sub> <!--just mail me with your problem. --> <!-- Please do not reverse this edit to invite email contact [https://support.mozilla.org/en-US/messages/new?to=john99 my pm link] -->
    [edit} Please continue the thread using [/questions/1038806#question-reply] ~J99 <br>
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  • Why has mozilla made it impossible to add an exception when a certificate error is encountered?

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    The mozilla developers, praised by their name, have decided to build a car that refuses to take the driver to some destinations.
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    and leave the Mozilla developers to stew in their own juices.
    Treefrob

    Incorrectly configured server. i.e. missing intermediate chain certificate. IE can download automatically, but Mozilla can't, hence the cert error. As far as why it randomly decides it is valid sometimes prior to you try to add a security exception I don't know.
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  • I am trying to access an https site and am getting a "This connection is untrusted" message. I am willing to bypass, but when I click the Add Exception button and then try to click the Confirm Security Exception button, nothing happens.

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