I think that question is self-explained :-)
When I browse to Application eclipse send me an error.
Ooops! I find the answer here: Is there a way to add Google Chrome as an external web browser in Flash Builder Standalone for Mac?
The exact location is: /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
It's annoying that you can't enter inside to an "Application folder" (AppName.app) through Finder :-S
Oh Wait! It's not working >_< Safari is opened