Maximize Tear-off Window от Lionel Wong

If you're annoyed that you're always manually maximizing newly torn-off windows, this is for you.

On some operating systems, when tearing off tabs from a maximized browser window, the newly created window is not also maximized.

Installing this addon ensures that new windows created in such a manner will match the origin window's maximized state. (If the origin window isn't maximized, the new window won't be either.)