Comment 4 for bug 234188

I use GCJ (GCJ Web Browser Plugin (using IcedTea) 1.0), which is an OSS (I think) Java equivalent
my flash version is: Shockwave Flash 9.0 r100
I use compiz-fusion and emerald with a custom window theme, but that seems totally unrelated...
I have javascript installed, but it doesn't seem to be listed at about:plugins (I know it's installed because javascript:alert("hello world") works), so I don't know about it. NoScript is configured to block google-analytics but not youtube.

Just for sanity checking purposes... you are using Hardy, right? I distinctly remember this not existing in Gusty, possibly because of Fx 3 itself being buggy and it in turn totally screwing up Fx 2 (It does, I've noticed it. They share a profile and have problems with addons -- mostly in Fx 2) -- there's no Fx 3 in Gusty, so there's no source of bugs.