Firefox runs Java applet if in an html file, not if in xhtml file. Google Chrome, and previos version of Firefox OK. Firefox is 13.0.1, Java is 1.6.0_12

Applet is signed, but signature not verified. Firefox should ask permission.
If applet is in an html file, permission is requested and all works OK.
If applet is in an xhtml file, it is not recognised. Changing the file extension from xhtml to html restores correct working (but I do need to run these files as xhtml, so that does not solve the problem!)

Your Java is very out of date, so please update to Java 7 update 5, and test again.
Then, try Resetting Firefox. [[Reset Firefox – easily fix most problems]]

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    Message was edited by:
    beckham12a18
    Message was edited by:
    beckham12a18
    Message was edited by:
    beckham12a18
    Message was edited by:
    beckham12a18

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