Hello, I'm using FF 30.0 on OS X 10.9.3. I don't like having my FF fill entire screen (maximized) so I dragged the window to a specific size I like. The problem is, once in a while, FF will not respect the last window size it was set to and open maximized (fills entire screen resolution. I don't mean full screen mode, just simply takes all available space between the dock and the top menu OS X bar similar to what maximize button on Windows does.). It's really annoying having to resize the FF size once in a while. The behavior started with FF 29. It will especially happen when working with external display and than going back to working on MBP's internal screen but it can happen even if I wasn't connected to external display in a while. I've found out that if I close the FF window first via cmnd+w and than quit FF it will respect the window size it was set to next time it opens. However if I just quit FF via cmnd+q sometimes it can respect the size of the window it was set to and sometimes not. It's really really annoying behavior so my question is: 1. Is it a bug? And if yes how can I report it since I don't have a way to always reproduce it. 2. If it's not a bug and some kind of stupid preference of FF to always try and stick to filling entire screen, how can I disable this? I'm on the verge of ditching FF entirely because of this since reconfiguring FF window size few times a day is something I really don't want to waste my time with. All best, Goran