OK, it's not really a secret
. And for me, it's definitely not little. The issue? Firefox leaks memory. I mean, like crazy. It's getting really bothersome. Memory usage simply grows and grows while browsing, and closing all open tabs doesn't release the memory. I quickly end up with Firefox taking 150MB+ of memory, and at times end up using 250MB+ (although I try not to let it get that high). I'm forced to periodically shutdown the app and start fresh, and that's a serious pain - I practically live in the browser, and always have half a dozen tabs open.
Now, I love Firefox. It's a great browser. But the leaks are very frustrating, and although there are numerous bug reports on Bugzilla, there doesn't seem to be a lot happening on them. There have been several Firefox updates, but no fix yet. I see that 1.1 is on the horizon - I can only hope that the problem is addressed in that release.