When we used to to access my wife's work email (outlook WEB login) from home we would get a login page to enter her email address and password, now we get a download page for office 365. I tried to access it from my work PC and got the login page and was able to log in. This PC has office 2000 installed. I do not have any version of office installed on the home pc, but we were able to log in until recently. Are there some settings in the latest Firefox I need to change, or has microsoft changed outlook's remote login to force you to install office to have a copy of outlook?

Thanks for any help you may have.