It currently seems impossible to add Google Chrome as an external web browser in Flash Builder Standalone for Mac. In this context, Eclipse only cares about \"Unix executabl
Update
As of Eclipse 4.3.1, the script approach (below) no longer works, but the simpler option of simply selecting "Google Chrome.app" as an external browser (using Eclipse UI) is fixed.
Old (obsolete) answer
My workaround was to create a shell script that opens Chrome (see below), and point Eclipse to this script. In this way Chrome is opened with 2 tabs - the home page and the requested page - but this was good enough for me.
#! /bin/sh
open /Applications/Google\ Chrome.app $*
/Applications/Google\ Chrome.app/Contents/MacOS
escape the space in the path to the google chrome executable. OS X only cares about unix executables, because its posix based as well, it doesn't actually have much to do with eclipse.