Comment 63 for bug 217580

Today I installed Firefox 3 from the previous Firefox 2 stable version. I'm
very sad to say that I'm having this same problem affecting my site:
http://darkmatters.org

There is heavy use of png which I am guessing is the catalyst to this problem.
Like Roman this is likely a transparency issue though I can't even guess as to
why FF2 works fine but FF3 does not.

Scroll lag on my site is very severe in FF3.