Noticing a new problem with Firefox 3.6.3. If I attempt an action when editing a page that opens a child window (e.g. Add a Web part) and then complete that action, no postback occurs and the edit is not processed. I can obviously work around this with IE Tab but I have a large community of Mac/Firefox users and others who don't use IE Tab. This isn't a Microsoft problem per se, but I don't see any forum or blog traffic about it; has anyone else experienced this? Thoughts/workarounds?