Just Firefox, or any browser other than IE?
For just any other browser, you can do:
Code:
<!-- [if !IE]--><meta http-equiv="refresh" content="0;other-page.htm"/><!--[endif]-->
By the way, I advise making your Firefox page the default, not the IE page. This is because Firefox is a more standards-compliant browser than IE, so if something goes wrong and a user of another browser gets stuck on the default page, it'll look better. You would do this like so:
Code:
<!-- [if IE]><meta http-equiv="refresh" content="0;ie-page.htm"/><![endif]-->
Bookmarks