From what I've read about it.
No it does not have the problem's that IE has. Microsoft will never be able to stay ahead of the asshole's, there software is just tooooo dam bug'ie but easy to use.
Besides not that many people use it and so
I really don't think the Cracker's and Virus writer's will bother with it.
They are just like any good programer with a lick of smarts they write for the biggest market.
JIm