I recently updated to Tor Browser 4.0 and found that this new version has a number of oddities in the realm of how it draws its window. Please examine the attached screenshots.
This screenshot shows how the Tor Browser window first shows up on my screen after a fresh install. Note the blank spaces at the bottom of the window (resembling a status bar) and at the right edge. Both of these anomalies go away if I do anything to resize the window, or even just minimize and restore the window (forcing a redraw) - so the inconvenience is minor, but still, this shouldn't be happening.
This screenshot shows the changes after installing the Classic Theme Restorer extension and restarting. First, note that the window is considerably shorter than on the first run; this has nothing to do with CTR and happens on the second run even when the first run is shut down without doing anything. Why can't Tor Browser properly save and restore my desired window height? Second, notice that the blank spaces at bottom and right still appear, even now that CTR is creating a new toolbar at the bottom of the window. Third, notice that the old style of main menu button at upper left that was recreated by CTR does not appear to have enough room for the words "Tor Browser". (Unlike the others, this particular anomaly never does resolve itself, no matter what I do.) Am I doing something to cause these strange behaviors? Is there something unusual about my computer that could be causing them? Is there some sort of incompatibility between Tor Browser and CTR that I'm not aware of?