This page has no back choice. It also won't mimize so I can't copy my question which lead me to this page in the first place, which is irratating.
Add a "Don't show me this again" button to the popup "This page is slowing down Firefox. Etc." This message is unnecessary. A web site that I visit a lot has a lot of traffic and I will never stop Firefox when I'm there. Patience is the way to deal with slowness.