It is not a problem that is why. I had plenty of tabs open before, 30 +, with firefox and it only used 200 to 250 MB of ram. That is not bad compared to IE and Chrome. The reason people are complaining is of all the toolbars and addons they add to firefox which makes it slow down. Those same toolsbars and addons is what causes firefox to eat a lot of ram. If you look at the firefox addon page every now and then you will see the people who know what is happening with some addons. They complain about the memory leak with them. There is quite a few addons with memory leaks that includes for both firefox and chrome. I can name a few for you if you want me to.
There is an issue though with Firefox and a memory leak. If I leave Firefox open for days (which I often do), I'll often see it using 500+MB of RAM just having the anandtech forum open.
Just because Firefox does better compared to other browsers, doesn't mean the problem doesn't exist.
I never had the memory leak problem until around Firefox 2.0. It has definitely improved since 2.0, but it's still there.
This addon does seem to work, but I notice that the addon itself crashes periodically (once a day?), but it doesn't crash Firefox. I'm at 50MB of RAM writing this post and I have the Anandtech Fermi review open, despite having had Firefox open for over 3 days straight now.
I have not seen an increase in my page file size, and looking at the page pooling for Firefox, it's under a MB.
Don't addons run in their own process now? What's the process called in the task manager?
I don't really mind being a guinea pig for this addon, so if anyone has any suggestions for testing this out, let me know and I"ll be happy to oblige.