> Here is one example: Firefox's tracking of the mouse cursor is broken, and often (yes, it's inconsistent) applies a vector translation so when trying to click something like a button or menu, the cursor needs to be about 100 x-y pixels away from the target. Only Firefox native UI is affected. These are My_First_Program.app tier bugs that should not exist in mature, 20 year old software.

While I've not noticed that myself, just yesterday I noticed something similarly weird.

I had a Safari window that was persistently half the screen width and height away from where the mouse was. As in: click to drag, and the whole window jumped half the screen down and to the right, so I couldn't get it to any other quadrant of any screen. Fixed on restarting the app.

I don't know if that was an app bug or an OS bug, but in either case it's Apple's fault.

How did we get to this?