Firefox/Feature Brainstorming:Tab freeze and low memory consumption
With this functionality memory usage of Firefox can be radically (many times) reduced by swapping out background tabs.
Some pages (that do not have timer subscriptions and Ajax/websocket connections) can be swapped off from the memory without any ill effects at any time. Others can be swapped on user request (for example, if page uses JS to play animation). Some, of cource, can not be swapped, because background activity is really useful (like shared Google Doc updating).
Other areas where this feature can be useful: - "View source" screen - Session save\restore - it will be more comlete than now. - "Save page" with guarantee that ALL content is saved (for example, now news in Google Reader will not be saved withoud extensions).