If I open my email account in explorer, the text is a good size and is legible. When I open my email account through Firefox, the text is so tiny you cannot read the headers or any other text on the page. The home page is fine for both explorer and firefox. The text size for emails is Arial12. When viewing the settings in Firefox, all settings are identical to Explorer. This just happened two days ago. Up until then all was fine no matter which service I used to read emails.