How do you change a website once chosen to be viewed in IE back to MF?

ok, I am presuming that you are talking about the default settings, any page can be viewed in any browser, minus the ones that specify that they require certain one; usually this is microsoft requiring internet explorer. in mozilla go to tools%26gt; options%26gt; on the general tab check the box that says ';Firefox should check to see if it is the default browser when starting.'; Also, click the button check now, then answer yes, make firefox my default browser. If this is not what you are asking, can you rephrase your question more specific? thanks.