[tor-talk] TorBrowser spoofed screen size?

Soul Plane soulplane11 at gmail.com
Thu Mar 6 01:52:59 UTC 2014

I tried TBB 3.5.2 in Windows XP at 120 dpi and browserspy says I'm at 96.
However I went to whatsmyip.org and clicked the 'more info' option and it
shows what appears to be a unique browser resolution. I've never checked
the resolution before so I don't know how it compares to earlier versions.

There's a ticket about DPI here:

If there is a thorough fingerprint page somewhere I would like to know what
it is so I can see what information differs between clients. Aren't Tor
Browser users supposed to look the same?

On Wed, Mar 5, 2014 at 7:56 PM, Joe Btfsplk <joebtfsplk at gmx.com> wrote:

> I'm sure I recently checked what screen size TBB (Windows) was giving out.
>  Which ever version I checked it in, test sites did NOT show my actual
> monitor size.
> Now, in TBB 3.5.2, my actual screen size seems to show on several browser
> test sites.
> Even extracted TBB again, into clean folder & re-checked.  Still shows my
> *actual* screen size on test sites.
> I thought decision was made / implemented to report same screen size for
> everyone?
> This is a problem - for couple reasons, for me.
> IF... I set Windows system DPI slightly > default of 96 (else it's too
> damn small), then w/o TBB properly spoofing screen size, sites will detect
> a size that's NEITHER the same as other TBB users, nor a "standard" size.
> Changing Windows' DPI setting will make my detected screen size an
> "oddball" size - that almost no one has.
> Anyone else notice TBB isn't spoofing a "default" screen size anymore, or
> have ideas why it isn't spoofing mine correctly?
> --
> tor-talk mailing list - tor-talk at lists.torproject.org
> To unsubscribe or change other settings go to
> https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk

More information about the tor-talk mailing list