Firefox 2 memory leak -- in popup windows!

I think I've found it! Thanks to the "memory leak extension", I now have seen when Firefox leaks memory -- on most popup windows that are loaded by javascript. On almost every popup window, close it down and the alert box tells me that objects weren't unloaded and it's in a "chrome" and some file (can't remember) ending in ".js".

So now I've found it apparently! now... if they'd only fix the freaking thing!