[tor-talk] TBB visited links color

[Joe Btfsplk]

On 2/10/2015 5:26 PM, Ben Tasker wrote:
>> Not sure if sites could detect / query the color specified & see that it
> isn't the default purple?
Yes, default is purple.  That was a side question - not the main one.

I think problem you mention was an old one in Firefox.  For years, 
Mozilla disabled visited links from changing color due to a bug.
I think that was fixed, but doesn't mean that TBB design wants them to 
change color (for highest anonymity / least fingerprinting).


>
> I'm not sure if it's at all related to why TBB wasn''t changing the colour,
> but a while back there was a bit of JS released used essentially tried to
> map your browser history out by including a huge number of links and then
> checking what colour they were -
> http://www.theregister.co.uk/2010/12/03/browser_history_sniffing/
>
>
> On Tue, Feb 10, 2015 at 8:33 PM, Joe Btfsplk <joebtfsplk at gmx.com> wrote:
>
>> Visited links in TBB (4.0.3 and up).
>> Sorry, didn't find anything in https://www.torproject.org/
>> projects/torbrowser/design/
>> or FAQs or in any filed bugs, about how TBB handles visited links turning
>> colors.
>>
>> Should TBB visited links turn color, or not - by design?
>> At 1st, no visited links were turning colors in TBB 4.0.3 - Win.
>>
>> Checked & the pref: browser.visited_color; #551A8B was at default value.
>> I assumed links didn't turn colors either because of private browsing
>> mode, or TBB modified to prevent links from turning colors.
>>
>> To see if it was private browsing, I disabled that in Torbutton &
>> restarted.
>> They still didn't change.   I re-enabled private browsing AND all 4 boxes
>> are checked under Torbutton > Privacy tab (as is the default).
>>
>> When restarted TBB again, links *did* change color (to default dark
>> purple).
>> Re-checked Torbutton Privacy tab - all 4 options still checked.
>> After still another restart, links no longer turned color (private
>> browsing still enabled in Torbutton).
>>
>> Not sure what happened - wanted to make sure TBB is behaving as designed -
>> if they should / should not turn color?
>>
>> Side question:  I assume if TBB allows them to turn color, that it may not
>> be wise to choose a non-default visited link color?
>>
>> Not sure if sites could detect / query the color specified & see that it
>> isn't the default purple?
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>
>