I keep reading online that the Mac doesn't support focus follows mouse, even that its not really possible all around.

Anyway I never had it on, then one day I woke up and its on. Is there a way to turn it off? Every single time I move my mouse to chrome or the terminal it automatically focuses and pops up, and worse if a window pops up and my mouse is not over it, it automatically pops up and focuses the window under the mouse!

1 Answer 1


I have a feeling that you likely resolved your issue since this was a few months ago, but just in case someone else runs across this in the future:

I had this exact issue - no changes to use preferences and this just happened all the sudden. It wound up being a special system extension (an awesome one, minus this Focus follows mouse feature) called Afloat. It has a menu bar option in all OS X applications under Window>Focus Follows mouse that is easily accidentally selected.

  • Note that it's not a 100% perfect extension, and for El Cap and up, you'll need to disable SIP to install mySIMBL.
    – JMY1000
    Feb 2, 2018 at 7:24

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