Sometimes, especially when I open pages that have some kind of multimedia contents, Chrome freezes. It always happens directly after opening a new tab. In contrast to the way Chrome usually has only tabs crashing, the entire windows freezes. If I have multiple separate Chrome windows open, the others keep working. I run Ubuntu 12.04 and Chrome in version 20.0.1132.47 but this has been going on since I last set up my machine around half a year ago. Anyone having the same problems or an idea what could be wrong here?