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How can I start accessing a site that has a "Remote XUL"?

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My college gave me an email account but when I try to get onto it, the site says: Remote XUL; This page uses an unsupported technology that is no longer available by default in Firefox (Please contact the website owners to inform them of this problem). However when I try to access my account on my mom's computer, it works. How can I get it on my computer?

My college gave me an email account but when I try to get onto it, the site says: Remote XUL; This page uses an unsupported technology that is no longer available by default in Firefox (Please contact the website owners to inform them of this problem). However when I try to access my account on my mom's computer, it works. How can I get it on my computer?

All Replies (3)

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Chosen Solution

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You're welcome.