Funny you should mention double-clicking 5) double clicking the tab bar = New tab 6) double clicking the title bar = Maximize/Restore And then you double-cli

Funny you should mention double-clicking 5) double clicking the tab bar = New tab 6) double clicking the title bar = Maximize/Restore And then you double-click the titlebar instead of the tabbar by mistake and your window jumps away. Or just have a stupid option and let the user decide. Maybe have that context-sensitive behaviour as default, but let me say that I want the title bar to be the title bar and tab bar to be the tab bar and have the two not mix together.