Firefox Creates Problem for Yahoo Mail

A few weeks ago, my girlfriend, who uses Netscape 7.2, began having problems signing into her Yahoo email account. I encountered the same problem a few days ago after installing Firefox 1.0.4. Here’s the problem:

Yahoo Mail prompts me for my password every time I try to access my email. It’s a royal pain in the arse. Normally, I’m prompted for my password once a day, maybe every other day. Now, though, I could send off an email, go to some other website, then recheck my email 10 seconds later — and have to type in my password again.

Does anyone know how to fix this?

What’s more interesting is that it only happens with Yahoo, not Gmail or any other site that only occasionally prompts me for my password. Perhaps the good folk at Firefox have made a deal with Google to force their users to switch over to Gmail.