On Thu, May 27, 2010 at 9:14 AM, Mathieu Baudier <mbaudier at argeo.org> wrote: > Hello, > > since I upgraded from CentOS x86_64 5.4 to 5.5, I noticed that Firefox > has become significantly slower on GMail (or Google Apps Mail). > > The page becomes slow to scroll as soon as there are more than a few > mails in a conversation (like in a typical CentOS mailing list > thread). > > Did anyone else notice that as well? > (I guess that I'm not the only GMail user around) > Could I have missed something / do something wrong? I had somewhat similar problems. This is a shot in the dark, but do you happen to have a Nvidia controller in your system? If so, you may have been affected by this bug: http://bugs.centos.org/view.php?id=4335 There is a workaround which solved the problem for me. Akemi