I am using HUD on 12.04 ubuntu and firefox is crashing for me. I have similar results as per this bug. Another thing is that I have 0 addons on firefox, so this is not caused because of the addons.
Whenever I am using firefox and accidently touch the window key, it crashes the firefox. HUD does show options related to the firefox during this time.
So my question - Is it possible to hide and disable HUD for certain applications? I don't want to disable entirely as I am using it for other apps.