Facebook, HTML effects, etc.. dont work at all

What steps will reproduce the problem?
1. When i download the SDK for firefox 
2. I build my own browser based on gecko, when i test it,
it works fine surfing websites, but not chat rooms, facebook, or other gaming 
sites that required flash and javaapplet

What is the expected output? What do you see instead?
I click on hyperlinks, nothing works. Facebook only showed the top bar, and 
that is all

What version of the product are you using? On what operating system?
I downloaded the newest Firefox SDK, which is Sep. 2009

Please provide any additional information below.

Original issue reported on code.google.com by richardw...@gmail.com on 29 Jun 2011 at 3:21

Attachments:

11.png

zidane168 / geckofx

Facebook, HTML effects, etc.. dont work at all #31