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XML Parsing Error: undefined entity Location: chrome://browser/content/browser.xhtml Line Number 760, Column 13: <toolbarbutton id="UITourTooltipClose" class="close-icon" ------------^

When I click on a link in Thunderbird to open in Firefox, I get the following error. XML Parsing Error: undefined entity Location: chrome://browser/content/browser.xhtml … (read more)

When I click on a link in Thunderbird to open in Firefox, I get the following error.

XML Parsing Error: undefined entity Location: chrome://browser/content/browser.xhtml Line Number 760, Column 13:

           <toolbarbutton id="UITourTooltipClose" class="close-icon"
</pre>

^

I am unable to resolve the issue. Is there a fix for this error?

Thanks in advance.

Bill

Asked by emt426 10 months ago

Answered by cor-el 10 months ago

  • Archived

Link in email (Thunderbird) won't open in Firefox

Hello. I am using Ubuntu 21.04 and after the upgrade I got different issues with Mozilla products. FF is: 88.0 64-bit TB is: 78.8.1 (64-Bit) One is: "Firefox is already r… (read more)

Hello.

I am using Ubuntu 21.04 and after the upgrade I got different issues with Mozilla products. FF is: 88.0 64-bit TB is: 78.8.1 (64-Bit)

One is: "Firefox is already running, but is not responding. To use Firefox, you must first close the existing Firefox process, restart your device, or use a different profile." appears if I click on links in emails. It doesn't matter if they're linked to youtube, are an online version of the email etc. Always the same message.

I tried to assign Firefox as a standard browser and changed to another one, started the system again, ran Thunderbird and Firefox and it still happened. I tried changing something in the config editor, doesn't help at all. I checked for files / attachments and what should happen with http/https. There's no entry, which is fine according to mozilla help. The settings are the same as before the upgrade. I don't understand why it doesn't work anymore.

And second problem is: When clicking a email link in Firefox it doesn't open in Thunderbird. Error message is: "Thunderbird is already running, but is not responding. To use Thunderbird, you must first close the existing Thunderbird process, restart your device, or use a different profile."

It also doesn't work if I have run FF and TB in safe mode at the same time or in other constellations (FF in safe mode, TB not and vice versa)

Any other ideas?

Asked by antishape 1 year ago

Last reply by antishape 1 year ago