In his blog Firefox memory usage and memory leak news Jesse Ruderman talks about memory usage and fix memory leak bugs in Firefox 3. For people who know Marmite I’ve been feeling the same with Firefox for the last years (I even used Opera for a long time). I love it for its plugins and extensibility, I hate it for memory and CPU usage (I have to restart Firefox 4/5 times a day). And funny enough, lots of my friends and colleague feel the same. I suppose we stick to Firefox because we don‘t want to go back to IE.
Hope I won‘t have this problem any more with Firefox 3 :