Dragging images causes Tor Browser to crash on Mac

If I deliberately or accidentally hold my mouse on an image and move the image, TBB Firefox (and before TBB Firefox, TBB Aurora) always crashes.

This happens on Snow Leopard, OS X 10.6.8 (not a problem on Windows).

The hardware is a MacBook Pro 2.66 GHz Intel Core i7.

I am currently using TBB 2.2.35-5, but this has been the case for all previous TBB.

Trac:
Username: mwolfe

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information