If you are on Windows Vista/7 and notice Firefox 13 constantly crashing the culprit is the new “Protection Mode” (which makes flash run in a sandbox).
To disable this you need to append “ProtectedMode=0” to the flash config file “mms.cfg”
Detailed Instructions
STEP 1: Open Administrative Command Prompt
-
Click Start.
In the Start Search box, type cmd, and then press CTRL+SHIFT+ENTER.
If the User Account Control dialog box appears, click Continue.
STEP 2: Run the following commands
64 bit instructions
takeown /F %windir%\syswow64\macromed\flash\mms.cfg echo ProtectedMode=0 >> %windir%\syswow64\macromed\flash\mms.cfg taskkill /F /IM firefox.exe /T taskkill /F /IM plugin-container.exe /T
32 bit instructions
takeown /F %windir%\system32\macromed\flash\mms.cfg echo ProtectedMode=0 >> %windir%\system32\macromed\flash\mms.cfg taskkill /F /IM firefox.exe /T taskkill /F /IM plugin-container.exe /T