Why does Firefox leak like a sieve?

I like Firefox... I like Firefox a lot. But: it leaks memory like a sieve. Either that, or ... get ready for it ... GOOGLE leaks memory like a sieve. Go ahead and leave your GMail or Google Homepage open for the better part of a day and watch the memory usage for FF climb.

I can get a way with it for a good long while... 60 MB, ok... 100 MB, ::sigh:: ok... 200 MB, getting clunky... 300 MB, time to restart my browser.

I'm very suspicious of the XMLHttpRequest situation. I have a feeling Googles creating an awful lot of extra request objects and FF isn't garbage collecting them. I seem to think I've run into this problem before, so it's not some baseless insight into the inner workings of FF. I also seem to think IE handled the situation a little more gracefully. At last, IE gets one point, I guess.

And on the topic of places getting one point: I'm not sorry I switched my blog away from MySpace, but I do miss the little emoticons a bit. Blogger lets me insert any image I want... but it's a big, complicated form and I just don't want to draw a smiley face for every emotion I need to express (...shut up, it's more than 2). Maybe there's an emoticon drop-down in beta over at Google... with some really fancy emoticons in it... SMART emoticons.