Weird screen sizes reported by Panopticlick
When I go to https://panopticlick.eff.org/index.php with TorButton (188.8.131.52) Panopticlick reports (among other things):
Screen Size and Color Depth 1150x600x24 bits of identifying information 14.67 one in x browsers have this value 26138.95
but if I go without TorButton it reports:
Screen Size and Color Depth 1280x800x24 bits of identifying information 3.9 one in x browsers have this value 14.94
I would suggest that the default settings for the non TorButton report are far more anonymous than the TorButton report.
I would suggest changing TorButton to use the default screen size and resolution rather than a modified version.
I have already started work on this.