Yeah, sharing a computer with my girlfriend of the last 7 years isn't much of a privacy issue as you can imagine and it's not confusing as long as the taskbar icons are distinct.

The shortcut in the taskbar when you pin a program isn't the same as a shortcut as you create it when you right click a file and create a shortcut. If you use a workaround to pin the second type of shortcut to your taskbar it doesn't behave the same way as the first type.

And again, that's using a workaround that I had to do some research to find, Mozilla's way would just be up access about:profile each time one of us wants to access our version of the browser.

Even for people who use multiple profiles but don't share their computer with anyone else, it's much simpler to have separate icons in the taskbar and the associated windows merged under their respective icons.

To me it becomes a Firefox issue when their competitor offers a much more logical way to deal with profiles.