Flex Builder : How to use a specific firefox profile for launching?

I tried doing the above by giving the following params in

Window -> Preferences -> Web Browser -> Edit -> Parameters :

-P devpro -开发者_运维技巧no-remote

But whenever I run an application from flex builder,

it asks me to choose a profile.

I also tried:

-P "devpro" -no-remote
-P %devpro% -no-remote
-P "devpro"
-P %devpro%

None of them worked.

---

Try specifying the full path to Firefox:

 "C:/Program Files/Mozilla Firefox/firefox.exe" -p devpro -no-remote

The above assumes Windows, for Mac/Linux, I think it would be:

 -a firefox -p devpro -no-remote