I want Firefox 1.0.7 back

Well, a week after installing Firefox 1.5 I want my version 1 back.

Why?

Flash doesn't show. Doesn't even try. Really. I downloaded the flash plug-in three times with no result.

Videos don't show. I hear them but can't see them. If apple+click over the video nothing appears, just the html tools.

I think I'll throw it and go back to good old 1.0.7