Rated 4 out of 5 stars
I have multiple YouTube and Google accounts. Google has a multiple sign-on feature, but it doesn't work with YouTube yet. This add-on is a lifesaver!
The only thing I would like is a way to restrict profiles to certain domains, so that switching my Google account doesn't also log me out of other unrelated websites such as Twitter.
The concept of preventing certain domains from being included in cookieswaps is at the top of my 'next feature to implement' list for sure. I'm not sure when I'll have it done, but I agree and plan to implement it at some point.