Comment 28 for bug 111299

> I think this is preferable to Firefox filling up all available physical memory

Sure. All I'm saying is that it might be a good idea for the timeout to be on the order of minutes rather than seconds. That would still prevent filling up physical memory and evict images in truly inactive tabs, while not causing issues with common user activity.

Ideally, the timeout would be based on some evaluation of the speed of the processor and amount of available RAM, but that sounds hard and complicated.