Do you think there should be a "volume mixer", like the one available in Windows? For example, you click on the little sound icon in the Menu Bar, and that allows you to change the volume per open window & tab.
Discuss.
Oh man, totally, I made the move from Windows to OSX in 2011 and one of the main things I miss is the volume mixer.
Other things I wish OSX copied from windows:
- Turn off MBP's internal display while connected to an external display but keeping the lid open (not clamshell mode)
- Being able to control the sound level of my connected HDMI monitor (bootcamp windows lets me, but OSX shows a greyed out volume icon)
- Built-in window snapping, I had to buy BetterSnapTool on the app store to get it
That's pretty much is off the top of my head.