Multicontainer add on is invaluable if you like siloing off google/facebook/etc into their own little cookie and context world. Also extremely handy for logging

Multicontainer add on is invaluable if you like siloing off google/facebook/etc into their own little cookie and context world. Also extremely handy for logging into sites where you have multiple accounts and in general web testing. It's definitely a poweruser must have. Most people can get away without it though or wonder why it would be useful :)