Many of you have asked, and we explain. Tor Browser ships with a defense called Letterboxing that prevent fingerprinting your screen dimensions. It adds margins to the window and it stops websites from identifying your exact screen size. Browse safely!

@torproject Do the margins change every time I visit another page?

Such a great idea. I used to wonder about it but then when I learnt about it it made perfect sense.

I been wondering about that as now the tor vrowser don't notefi me when i acedently fullscreen it at times

@torproject yeah, but EFF panopticlick still shows me as unique in Android :(

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