Konqueror becomes a zombie process after being closed.

[Ryan]

In Kubuntu 18.04 LTS, Koqnueror becomes a zombie process when closed.

A new instance can't be started without killing the zombie process.

Konqueror package version is 4:17.12.3-0ubuntu1

[Ron Widell (r-widell)]

I had the same issue, and posted to the ubuntu forum.
The solution for me was to go to Settings->Configure Konqueror->Performance and uncheck the box "Always try to have one preloaded instance".

After logging out and back in to get kdeinit5 reloaded, I can launch Konqueror multiple times per session, and there is no longer a zombie process.

ron

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Brian Foster (blfoster)]

Yes, I can confirm that once Konqueror is started - with "Always try to have one preloaded instance" enabled - a process (possibly the same one? (didn't check)) does stay around, even after an clicking quit. This is very annoying, since when shutting down the system (or possibly even when logging out?), it does not seem to respond (quickly enough?) to the (presumed) SIGTERM, and as a result, you get a Crash Report at the next login.

Disabling "Always try to have one preloaded instance" appears to avoid the problem.

As an aside, it's not technically a "zombie process" - it has not actually exit()ed - but an idling process which seems to interfere with things....