I’m using current gimp-2.10.32 (linux) with current versions of all deps, except for python2, pygtk, etc. So when I want to look at the help (not often!) I have the preference set to online (that’s probably automatic without local help files) and I install gvfs to get to the help.
On one machine, which has inherited ~/home from a previous machine where I used to edit photos, that works fine - moves the running firefox to the current desktop (in xfce), opens a new tab and takes me to GNU Image Manipulation Program.
On another machine (same versions of all relevant packages, same help setting in preferences, same locale setting) ‘help’ instead opens a new instance of firefox on the currnet desktop (instead of moving the already open firefox), but with only its home page.
I forget how I originally specified it to open firefox, and I’m anyway happy with that, but I suspect there is a file somewhere which makes this work on one machine, and eithr has different content or is missing on the machine where it doesn’t work.
Now that the gimp-help list is closed, I can’t ask there, so I’ll try asking here.
TIA. ĸen