2009 Apr 7, 12:12HTML5's registerProtocolHandler seems to come from a cool FireFox 3 feature: "With web protocol handlers, the web application can register the specific protocol it wants to handle. Firefox will then
prompt the user to choose which of the registered applications (web or desktop) it should use to handle the action. Any protocol, real or imaginary, can be used - mailto: is only one example,
webcal:, tel: and fax: are others."
firefox uri scheme protocol mozilla html5 registerProtocolHandler
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