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How can I unblock an add-on?

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I have a vendor application that uses java add-ons that FireFox is disabling when the vender pop-up window appears. How can I re-enable it?

I have a vendor application that uses java add-ons that FireFox is disabling when the vender pop-up window appears. How can I re-enable it?

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Just to be sure: do you mean Java applets or JavaScript?

Note that your System Details List doesn't show the Java plugin.