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Crash due to XML parsing error

  • 2 replies
  • 1 has this problem
  • 105 views
  • Last reply by brian_m

brian_m
brian_m
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I'm using 64-bit Linux Mint 20.3 LTS, and the latest version of Firefox from the repositories (101). Suddenly, for no reason I know, my default profile has started crashing immediately on trying to run Firefox. A small window comes up with the error message

XML Parsing Error: not well-formed Location: chrome://browser/content/browser.xhtml 

     <button when-cofnection}"secure-cert-user-overridden"="" <="" pre="">

and then a line of ------^  where the ^ indicates between the t and the i of cofnection

Yes, I emphasise that I HAVE copied the error message carefully, including the mismatched bracket pair and the cofnection rather than (I assume) connection

I've managed to get a working version of Firefox by creating a new profile and using that (as in for posting this request for help), and I do have a recent backup of my bookmarks, but it will be a royal PITA if all my logins and passwords have disappeared. I don't want to go any further than this without some guidance, as all the messages I've found detailing how to fix this seem to make the assumption that I'm running Windows. 

Can anybody help, please?

</button>
I'm using 64-bit Linux Mint 20.3 LTS, and the latest version of Firefox from the repositories (101). Suddenly, for no reason I know, my default profile has started crashing immediately on trying to run Firefox. A small window comes up with the error message XML Parsing Error: not well-formed Location: chrome://browser/content/browser.xhtml <button when-cofnection}"secure-cert-user-overridden" and then a line of ------^ where the ^ indicates between the t and the i of cofnection Yes, I emphasise that I HAVE copied the error message carefully, including the mismatched bracket pair and the cofnection rather than (I assume) connection I've managed to get a working version of Firefox by creating a new profile and using that (as in for posting this request for help), and I do have a recent backup of my bookmarks, but it will be a royal PITA if all my logins and passwords have disappeared. I don't want to go any further than this without some guidance, as all the messages I've found detailing how to fix this seem to make the assumption that I'm running Windows. Can anybody help, please?

Chosen solution

Looks like this button: 

        <!-- Remove Certificate Exception -->
        <button when-connection="secure-cert-user-overridden"
                data-l10n-id="identity-remove-cert-exception"
                class="panel-button"
                oncommand="gIdentityHandler.removeCertException()"/>

You can try Firefox from the official Mozilla server if you currently use a version from the repositories of your Linux distribution to see if it behaves differently.

Read this answer in context 👍 1

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Chosen Solution

Looks like this button: 

        <!-- Remove Certificate Exception -->
        <button when-connection="secure-cert-user-overridden"
                data-l10n-id="identity-remove-cert-exception"
                class="panel-button"
                oncommand="gIdentityHandler.removeCertException()"/>

You can try Firefox from the official Mozilla server if you currently use a version from the repositories of your Linux distribution to see if it behaves differently.

brian_m
brian_m Question owner
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Thanks! Looks like it's the version in the Mint distro that has the problem.