AI OnAI Off
Yeah, it's a known bug. The trick is to pick your property type first (behind doing anything else on the form) and select "Cancel" from the popup. I've been living with this for about a year now (FF is all I use), and I'll likely be totally confused when they fix it...
Whenever I choose what type a property should have for my custom page type, in Firefox 3.6 I get a popup asking me whether I want to navigate away from that page. If I choose OK, the page reloads in a clean state and when I cancel it gets loaded appropriately.
Why is this? Surely I can't be the only one with this problem.
This is on EPiServer CMS 6, a completely new installation.