Ok, solution found. It doesnโt work exactly with one click, but two clicks, but itโs better than changing the default browser twice for each debugging session.
Put this code in bat or cmd file and set it as default browser ( Preferences > General > Web browser , New... )
@echo off IF EXIST ff.lock GOTO runie IF NOT EXIST ff.lock GOTO runff :runie START "IE" /b "c:\Program Files (x86)\Internet Explorer\iexplore.exe" -private %1 DEL ff.lock GOTO end :runff START "FF" /b "c:\Program Files (x86)\Mozilla Firefox\firefox.exe" -private %1 ECHO lock > ff.lock GOTO end :end
... and double-click "Debug"! It launches two browsers and attaches a debugger to them!
Note. If you are using Windows Vista / 7 with UAC enabled, you may need to run Flash Builder as an administrator (so that the script file is written to the ff.lock file).
source share