I’ve been so torn lately. I’ve been a die hard Firefox supporter since it began. Unfortunately, lately on my Mac, the particular mix of extensions that I think I must have, cause enough CPU use to have the laptop’s fans spin up to jet engine level. About the time the noise and heat became too much for me, the Safari 4 beta was released. So here I am, for weeks, loving the performance and features of the new Safari, especially history interaction and Chrome-esque tabs. But, several times a day, I find myself missing my extensions. I can’t count the number of times I’ve searched for an extension that would allow me to profile the source of my CPU woes. I suppose I should stop being lazy and do a thorough step-through, turning on individual extensions. It’s just with 41 extensions, that’s a painstaking task. I often revisit this issue and would love to hear any suggestions.