SYNOPSIS
--------
Cannot disassociate plugin from Firefox/Mozilla via Java control panel

OPERATING SYSTEM
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Windows

FULL JDK VERSIONS
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JDK 7 (tested with b142)
Java 6 (tested with 6u25)
       
DESCRIPTION from LICENSEE
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If we uncheck the "Mozilla family" checkbox in Java Control Panel -> Advanced -> Default Java for browsers, applets can still be loaded by Firefox. There seems to be no way to disassociate the plugin from Mozilla/Firefox via the control panel. This seems to be due to the presence of a registry key in HKLM->SOFTWARE->MozillaPlugins, which is added during installation.

REPRODUCTION INSTRUCTIONS
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1. Install Firefox browser (we tested with Firefox 3.5 and 4)
2. Install the JRE
3. Open Java Control Panel -> Advanced -> Default Java for browsers, and uncheck the "Mozilla family"" checkbox
4. Launch Firefox and open any HTML page containing an applet

Expected result:
Applet should not be loaded

Observed result:
Applet is loaded