Linux/ Individual firefox favicon for each profile. Is there an extension? or another solution?

Question

linux

I work with firefox profile manager. I want to personalize the window of each profile, otherwise it’s easy to get confused in them.
DE -XFCE, all windows on the taskbar are personalized with icons and tooltips on mouseover only.
Is there any solution or way to make the window icon of each specific profile on the panel customizable in terms of display?
I didn't find it on addons.mozilla

Answer 1

No, on linux the icon for the process is superimposed, at least this applies to Gnome. I would try to use different versions of firefox, there is also a developer edition, there is waterfox. You don't have many profiles.
And so you have to mess around, hack the executable file, then hang an icon on it, through the .icons folder, the recipe is again for gnome

Answer 2

/usr/share/applications/firefox.desktop
copy with a different name and change the path to the icon
or better use this addon:
https://addons.mozilla.org/en-US/firefox/addon/mul...