I have upgraded to FF4 last week giving hope that it will solve the memory issue that FF has been having since the very beginning. I do noticed that the new version has better performance – start up and page loading are faster. However, it still have memory issues, at least on my MacBook Pro.
FF4 seems to have another process running in the background called “Firefox Plugin Process” which does use quite a bit of memory.
And the followings are my add-ons and plugins, there are not many.
The main problem is that after I use FF to open a web application that use lots of memory, it doesn’t release those memories after I close those tabs until FF is restarted. This is very poor memory management that FF just can’t get it fixed.
If anyone have similar experience, please share with the rest of the world.