Thanks to James Maguire for this link.
“After spending months on end watching Mozilla Firefox
4 go through eleven-and-some-odd betas, I’m less than impressed
with what I’ve waited for all this time. The first time I launched
a fresh install of Firefox 4 and navigated to the homepage of the
New York Times, it hung for almost a minute on end – and then
every ad block on the page burped with a “Flash plugin has crashed”
“This is progress?”