Comment 46 for bug 788102

With absolutely no evidence to support this, I'm convinced that this issue could be related to <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=680090">680090</a>...at least for certain users.

Since having upgraded to version 6 I've experienced a significant performance slowdown and hangs/freeze (spinning beach ball) sometimes every 2-3 minutes on certain websites. These sites are almost always javascript-intensive ones or sites that rely on lots of nested content (ie: iframes).

I notice this poor behavior particularly when I have many tabs open (FYI: Google maps slows to a crawl--it never used to). Is Google maps possibly something to be looking at to identify this problem? As it stands I'm having to consider reverting to 5.x...it gets so bad.