Oh so this is why sublime often closes itself when I close firefox!! (I also have a 15-inch rmbp)
Also speaking of problems, some time ago, shortly after I installed the latest graphics driver, sublime started hangling when I select text using mouse in certain areas of views. The simplest scenario that leads to a hang, is pressing Command+F, typing something and then selecting that something with mouse going from the last letter to the first one and then further to the left. As soon as the cursor leaves the boundaries of the text box, Sublime gets fried consuming 100% cpu until I kill it. No idea whether this is called by the driver update or it's some plugin auto-updated through PackageControl. Maybe this sounds familiar?
Upd. Found the culprit. The code as simple as the three lines provided below deterministically hangs Sublime on my laptop:
def on_selection_modified(self, view):