Thunderbird no longer opens links
Hi, since a few days, hyperlink no longer works in my Thunderbird. When
I click a hyperlink in a message, Chromium (my system's default web
browser) should open and display the link. This has been working fine
for long, but now it no longer happens.
I checked everything that's pointed out in a Mozilla Support web page
[1], but didn't find what's causing the issue:
- I checked that the operating system's default browser is specified.
From KDE Plasma System Settings -> Applications -> Web Browser, I see
that chromium is specified.
- I checked that no application is specified for the HTTP / HTTPS
content type. In Thunderbird -> Edit -> Preferences -> Attachments ->
Incoming I had two actions, one for HTTP the other for HTTPS, both
pointing chromium. I tried and deleted both. When I clicked on a
hyperlink in a message, a popup asked for an applications to open it, I
chose chromium flagging the remember checkbox, and the action for HTTP
content type was recreated, but the link did not open.
- I checked for an incorrect preference like
network.protocol-handler.external-default or any other preference
beginning with network.protocol-handler.warn-external, but I have no
such preference.
- I checked for interference from an extension, running Thunderbird in
Thunderbird Safe Mode, but the problem persisted.
The only other suspect I have is apparmor, which was installed in a
recent security update. But can this be the reason?
Thanks & Regards!
[1] https://support.mozilla.org/en-US/kb/Hyperlinks-in-Messages-Not-Working
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