Why would Flashbuilder 4 work in Internet Explorer but not in Firefox?

Question

When I produce an application in Flashbuilder 4 and click the green run button, it opens Firefox with this URI:

file:///C:/chapter_1/starter/Getting_Started/PersonalTrainerWebApp_Finished/bin-debug/Main.html

but the screen is blank (grey, right-click says "about adobe flash player 10")

but if I copy that URI into Explorer, it is converted to:

C:\aaaPersonalTrainerWebApp_Finished\bin-debug\Main.html

and it works fine. If I copy this URI back into firefox, it converts back to the old one and is blank.

How can I get the Flash application to run in Firefox as well?

Answer 1

try to run your url on a webserver, and install the debug version of flash player to check error with http://www.sephiroth.it/firefox/flashtracer/ for example.