To reduce the amount of memory that your Firefox is using and the amount of processing power, I added the Bartab extension to your Firefox. It's supposed to automatically unload tabs which haven't been used recently. Unfortunately, it doesn't look like it works completely. When it unloads the tab, it doesn't reload it when you select that tab, as it is supposed to. When that happens, you'll have to click "Reload" by hand. I think this pain is worth it so you can still have lots of tabs open.