I have just downloaded Tor Browser in Debian GNU/Linux system, but after an hour of use, the window does not maximize. When clicking on the maximize button or double-clicking the title bar, in a matter of 1/3 of second the window maximizes but comes back to normal. Before it happened I have installed Flash Plugin and enabled it in the configurations, then it started.
For now I need to drag the window and touch the top of the screen for the browser maximize in the laterals, because I am using Xfce, and just grab the edge of the window and pull down, but I would like to know what could have happened, if it has a bug with Flash, my system or what.