What i care are not processes or thread (Score 1)

I use FF3 on XP in a heavy way: 8 windows, 20 tab each one. I also use suspension so it accumulates a lot of trash in its cache because i rarely restart it. I usually see FF grow over one GB. This is not the problem I bought ram for that. The problem is the performances! I tried Chrome and I like it even if it takes more ram than FF. The real point is: give me a way to identify which tabs make my browser hang, and how much mem they use so that I can close them if I need. I don't care if a tab is implemented with a thread o process.