On a side note, you should really have better QA for new versions, especially when the browser gets more complex and have more features as it grows. I understand that users need to provide detailed reproducing steps when reporting bugs (which I think I did above), but there are, and will be, very annoying bugs that's also hard to reproduce. Developers need to spend more time to test it yourselves, since you know more about the internals.
It's an early-stage produce for sure, and I'm glad to help, not just by reporting bugs but also by a small amount of money every month. But I honestly felt worried when a new RC version introduce new bugs together with new features. Sorry if you already spent a lot of time on regression tests. I hope the product can succeed!