when autocomplete popup is up r=pavlov@netscape.com, sr=blizzard@mozilla.org, a=asa@mozilla.org pref allow user to control the Mode_switch workaround, current enabled Use to disabled the workaround when the X server is finally fixed. git-svn-id: svn://10.0.0.236/trunk@96415 18797224-902f-48f8-a5cc-f745e15eee43