The process is running after rebooting without opening any Mozilla apps.

At one point I had 127 processes for kmozillahelper.

https://paste.opensuse.org/97209133

After re-installing kmozillahelper, I see the processes growing again.

https://paste.opensuse.org/29088611


Operating System: openSUSE Tumbleweed 20200923
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.15.1
Kernel Version: 5.8.10-1-default
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-4810MQ CPU @ 2.80GHz
Memory: 31.0 GiB of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics 4600

That is an application specific to your distribution, please ask in their forum.