Clicking internet links doesn't work

[peteh100]

For many months now, whenever I've tried to follow a link, say, from an email, firefox opens but it tries to open a file which has been created in ~/.cache/kioexec/krun/... After months of looking for ways to fix it I still can't make it work as it should. I have a workaround which is to copy the link address, open firefox and paste the link into the url bar.
Does anyone know what my problem is and how to fix it?
I'm totally up-to-date with tumbleweed and as you can see my default browser is firefox (currently 91.0.1).

[hcvv]

And your Desktop???

[kasi042]

I couldn't tell for sure.

~/.cache/kioexec/krun/...

However, that's not the firefox cache. Did you search in about:config? I'd try searching for that path or parts of it like "kio" or "krun". You'd have to show all settings and use "ctrl+f" not the search bar for setting names. In settings names you can search for "link" or "browser.link" - anything suspiscious?
It could also be some some glitch in MIME settings?

[peteh100]

And your Desktop???

Sorry I thought the kio bit was a pointer. The desktop is the latest kde framework-5.85 and plasma 5.22.

[marel]

Can you try on the command line "xdg-open https://forums.opensuse.org". Does that work, if not please post the command on the complete output in this topic.

[marel]

For KDE you should be able to fix this through Settings --> System Settings --> Applications.

[peteh100]

Can you try on the command line "xdg-open https://forums.opensuse.org". Does that work, if not please post the command on the complete output in this topic.

The following all appears from just the original command. It looks as though I've made 2 separate commands which I haven't!:

peteh ~ > xdg-open https://forums.opensuse.org
kf.coreaddons: no metadata found in "/usr/lib64/qt5/plugins/kf5/kio/desktop.so" "Failed to extract plugin meta data from '/usr/lib64/qt5/plugins/kf5/kio/desktop.so'"
kf.coreaddons: no metadata found in "/usr/lib64/qt5/plugins/kf5/kio/applications.so" "Failed to extract plugin meta data from '/usr/lib64/qt5/plugins/kf5/kio/applications.so'"
peteh ~ > command= "/usr/bin/firefox" args= ("/usr/bin/firefox", "https://forums.opensuse.org")
kf.coreaddons: no metadata found in "/usr/lib64/qt5/plugins/kf5/kio/desktop.so" "Failed to extract plugin meta data from '/usr/lib64/qt5/plugins/kf5/kio/desktop.so'"
kf.coreaddons: no metadata found in "/usr/lib64/qt5/plugins/kf5/kio/applications.so" "Failed to extract plugin meta data from '/usr/lib64/qt5/plugins/kf5/kio/applications.so'"
kf.kio.core: Protocol Class of url QUrl("https://forums.opensuse.org") , isn't ':local', cancelling job.
Copying QUrl("https://forums.opensuse.org")  to QUrl("file:///home/peteh/.cache/kioexec/krun/7198_0/unnamed")
telling kioexecd to watch path "/home/peteh/.cache/kioexec/krun/7198_0/unnamed" dest "https://forums.opensuse.org"
All files downloaded, will call slotRunApp shortly
EXEC "/usr/bin/firefox /home/peteh/.cache/kioexec/krun/7198_0/unnamed"
EXEC done

My default browser is set to firefox in system settings and always has been.

[marel]

Okay that does not look good, for me it work and looks like:

$ xdg-open https://forums.opensuse.org
kf.coreaddons: no metadata found in "/usr/lib64/qt5/plugins/kf5/kio/desktop.so" "Failed to extract plugin meta data from '/usr/lib64/qt5/plugins/kf5/kio/desktop.so'" 
kf.coreaddons: no metadata found in "/usr/lib64/qt5/plugins/kf5/kio/applications.so" "Failed to extract plugin meta data from '/usr/lib64/qt5/plugins/kf5/kio/applications.so'"

After that the tab is opened in Firefox.

The relevant error looks to me:

kf.kio.core: Protocol Class of url QUrl("https://forums.opensuse.org") , isn't ':local', cancelling job.

Searching for that on the Internet gives some hints.
Can you try:

$ xdg-mime query default x-scheme-handler/http  
firefox.desktop 
$ xdg-mime query default x-scheme-handler/https 
firefox.desktop

Does it list anything else for you?

[susejunky]

... The desktop is the latest kde framework-5.85 and plasma 5.22.

Do you have the package kmozillahelper installed?

Regards

susejunky

[peteh100]

It started to work properly again yesterday. The only thing I did was make a slight change to a desktop widget for firefox but I can't think that would have made a difference (I added the "%u" after the command).
Anyway, it's now working as it should so thanks for all you responses.