>> Multiple instances of /usr/lib64/libreoffice/program/nsplugin keep
>> spawning even after I kill them. I suspect midori although I have the
>> libreoffice plugin disabled. Has anyone else seen this?  How can I
>> confirm my suspicions?
>
> ps with the f option ?

I always do 'ps -ef|grep name' but should that indicate whether midori
is to blame?

Check the parent process id (PPID) to see what's responsible for starting nsplugin.