I was having an issue with Dreamweaver CC being very unstable and also a similar (but worse) issue with Edge Animate. I found this in the forums (applies only to Macs) at http://forums.adobe.com/message/5562106#5562106
Never mind that. The cause for me seemed to be this issue: http://lists.apple.com/archives/cocoa-dev/2011/Aug/msg00987.html
I indeed had the /Library/Contextual Menu Items/SCFinderPlugin.plugin/Contents/MacOS/SCFinderPlugin - i moved it away, restarted Finder, and import symbol no longer crashes.
If you don't have this specific plugin, you might have something else in Finder causing the crashes.
It seems to have helped my issues with Dreamweaver as well although I haven't tested thoroughly. I'm passing it along so others can give it a try.