Sure. Notice in this screenshot that the active (bottom) and inactive (top) window have different background and foreground colours in the titlebar. They are different shades of grey on Windows. We have a bug on file (bug 1704131) that the difference is too subtle; this is a bit of a usability issue because of course, if you're typing or otherwise interacting with stuff (and not the kind of person who maximizes all their windows on a single screen) then knowing which window has focus (is active) is kind of important. The default state on Linux is that we use the OS-defined colours in this case, which are more significantly different. On Windows, the same behaviour can be turned on behind an about:config pref. bug 1851155 is on file about potentially making that the default behaviour. I'll attach a screenshot of that next.
Bug 1899598 Comment 4 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
Sure. Notice in this screenshot that the active (bottom) and inactive (top) window have different background and foreground colours in the titlebar. They are different shades of grey on Windows. We have a bug on file (bug 1704131) that the difference is too subtle; this is a bit of a usability issue because of course, if you're typing or otherwise interacting with stuff (and not the kind of person who maximizes all their windows on a single screen) then knowing which window has focus (is active) is kind of important. The default state on Linux is that we use the OS-defined colours in this case, which are more significantly different. On Windows, the same behaviour can be turned on behind an about:config pref. bug 1851155 is on file about potentially making that the default behaviour. I'll attach a screenshot of that next. Edit: Oh, and notice that the navbar styling is currently identical between the active/inactive windows.