Tested with jre 7u1/ FX 2.0.2-b08/ Firefox 8 and the JavaFX app can not be loaded in the browser. Java console is open and closed immediately
Firefox somehow loads the JRE plug-in and not JavaFX


Tested Configurations:
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- x86 XP(sp3)/ x86 Vista(sp2)
- jre 7u1
- FX 2.0.2-b08 runtime
- Firefox 8


Steps to reproduce
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0) Make the system clean- no jre/fx installed
1) Install jre 7u1
2) Install FX 2.0.2 b08 runtime
3) Use FF 8 to invoke FX 2.0.2 b08 sample:
http://jre.us.oracle.com/java/re/javafx/2.0.2/promoted/fcs/b08/binaries/windows-i586/javafx-samples-2.0.2/BrickBreaker.html

Brick Breaker app fails to load. Under the same test scenarios, it works with IE and Chrome


Alternatively, before doing step#3 above, you can try to remove FX 2.0.2 b08 runtime and install it again, clear all the caches , the result is still the same