Uploading problems with Safari 4.1.3 -

Hello, I just thought this was a funny question to ask -

On my PowerPC G5 tower, running OS 10.4.11, and my question is in regards to Safari version 4.1.3 uploading problems for facebook and youtube... I always have to use FireFox version 3.6.13... and not without trouble either.

I get it. I need a new computer, but I just thought it fascinating why one works 90% of the time and the other never works.