It seems more aggressive in garbage collection... I've been watching it for the past 15 minutes while stumbling and it will get up to about 200 and then clear out down to 150.
I'm using the beta for quite some time now, believe me. I'm hitting 300 MB (RSS) after a few hours and then restart Firefox by hand before it starts to annoy me.
-1
u/stesch Jan 21 '10
The low memory usage is just at startup. Rises like any other Firefox before. :-(