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> one in 506 browsers have the same fingerprint as yours. So is this good or bad? Some time this year, I'm planning to write a browser add-on which will send

> one in 506 browsers have the same fingerprint as yours. So is this good or bad? Some time this year, I'm planning to write a browser add-on which will send random (legitimate, from real browser versions) header combinations of the user agent (+OS) and accept headers. It can be semi-random, e.g. send the same headers to the same host during one visit. Combine it with the NoScript addon, use the RequestPolicy addon, block 3-rd party cookies, tell the browser to delete the cookies and local storage on exit, use plugins only in "on-click" mode (or don't use plugins), don't send "referer"s (or send fake "referer"s), use Tor for HTTPS sites (and sites that don't need authorization), and this will make hard to track you.

tjic 13y ago
> I'm planning to write a browser add-on Do it for chrome. ...and let me send you money.
- conductor 13y ago
  Thank you for your support. I'm sorry, but I use Firefox, and I have already created some small add-ons using Mozilla's Addon SDK, so I'm already familiar with it. If I manage to write it (and it will be under GPLv3), I will try to port it to Chrome too.
- herro 13y ago
  KISS for Chrome will randomise User-Agent. https://github.com/hultqvist/Kiss https://github.com/hultqvist/Kiss
- X4 13y ago
  Save your money, the people who released this solve the problem: Go here => https://stopfingerprinting.inria.fr/ https://stopfingerprinting.inria.fr/ Chrome + Firefox add-on. EDIT: solved->solve, they didn't solve it yet, but this add-on helps them solve it.
  - conductor 13y ago
    Thank you for this link. So, currently, it does nothing to protect, it only collects information and sends to them for future analyzing.
    - X4 13y ago
      Correct, they are researching ways to fight against tracking, this helps the researchers to do just that and stop future tracking attempts.
jfb 13y ago
Yeah, I've thought about this too. I was going to try and use a system-wide proxy, rather than a browser plugin, to capture all outgoing HTTP traffic and sanitize it. Making it more widely useful would require a lot of thought, because much of the functionality of the current web is predicated on using these same vectors. There are interface issues, and fundamentally, the web would be significantly less useful for a large number of people if the privacy situation were ameliorated.
- conductor 13y ago
  When it's done in proxy level, you can't change the JavaScript objects, so the global objects like "navigator" (which can be used to extract your browser and OS version) will still be available for trackers (if JavaScript is enabled).
  - jfb 13y ago
    True. You'd need a defense in depth.
hnriot 13y ago
that's good 1:506 means you're not very unique. Unfortunately for me it says appears to be unique among the 3,229,643 - probably because I'm Chrome/Linux, my ratio basically means I can be trivially tracked across the web.
- X4 13y ago
  Beeing unique is bad, because that makes you an even better target.
rch 13y ago
> Your browser fingerprint appears to be unique among the 3,229,622 tested so far. > Currently, we estimate that your browser has a fingerprint that conveys at least 21.62 bits of identifying information. Your result sounds a lot better than mine. Simply using Opera gives me a one in 111366.28 result.
- javajosh 13y ago
  You do realize it's better to have lots of browsers like yours in this test? The more unique your browser is, the more trackable you are.
chmars 13y ago
It's good. My result on the other hand: 'Your browser fingerprint appears to be unique among the 3,230,650 tested so far.'
junkblocker 13y ago
It would be useful if you took ideas and code from or took over https://addons.mozilla.org/en-us/firefox/addon/firegloves/ https://addons.mozilla.org/en-us/firefox/addon/firegloves/ development.
wizard_2 13y ago
Is there a plugin to remove or modify specific request headers? The bits of unique information could easily be removed, couldn't it?

tjic 13y ago

> I'm planning to write a browser add-on Do it for chrome. ...and let me send you money.

conductor 13y ago
Thank you for your support. I'm sorry, but I use Firefox, and I have already created some small add-ons using Mozilla's Addon SDK, so I'm already familiar with it. If I manage to write it (and it will be under GPLv3), I will try to port it to Chrome too.
herro 13y ago
KISS for Chrome will randomise User-Agent. https://github.com/hultqvist/Kiss https://github.com/hultqvist/Kiss
X4 13y ago
Save your money, the people who released this solve the problem: Go here => https://stopfingerprinting.inria.fr/ https://stopfingerprinting.inria.fr/ Chrome + Firefox add-on. EDIT: solved->solve, they didn't solve it yet, but this add-on helps them solve it.
- conductor 13y ago
  Thank you for this link. So, currently, it does nothing to protect, it only collects information and sends to them for future analyzing.
  - X4 13y ago
    Correct, they are researching ways to fight against tracking, this helps the researchers to do just that and stop future tracking attempts.

jfb 13y ago

Yeah, I've thought about this too. I was going to try and use a system-wide proxy, rather than a browser plugin, to capture all outgoing HTTP traffic and sanitize it. Making it more widely useful would require a lot of thought, because much of the functionality of the current web is predicated on using these same vectors. There are interface issues, and fundamentally, the web would be significantly less useful for a large number of people if the privacy situation were ameliorated.

conductor 13y ago
When it's done in proxy level, you can't change the JavaScript objects, so the global objects like "navigator" (which can be used to extract your browser and OS version) will still be available for trackers (if JavaScript is enabled).
- jfb 13y ago
  True. You'd need a defense in depth.

hnriot 13y ago

that's good 1:506 means you're not very unique. Unfortunately for me it says appears to be unique among the 3,229,643 - probably because I'm Chrome/Linux, my ratio basically means I can be trivially tracked across the web.

X4 13y ago
Beeing unique is bad, because that makes you an even better target.

rch 13y ago

> Your browser fingerprint appears to be unique among the 3,229,622 tested so far. > Currently, we estimate that your browser has a fingerprint that conveys at least 21.62 bits of identifying information. Your result sounds a lot better than mine. Simply using Opera gives me a one in 111366.28 result.

javajosh 13y ago
You do realize it's better to have lots of browsers like yours in this test? The more unique your browser is, the more trackable you are.

chmars 13y ago

It's good. My result on the other hand: 'Your browser fingerprint appears to be unique among the 3,230,650 tested so far.'

junkblocker 13y ago

It would be useful if you took ideas and code from or took over https://addons.mozilla.org/en-us/firefox/addon/firegloves/ https://addons.mozilla.org/en-us/firefox/addon/firegloves/ development.

wizard_2 13y ago

Is there a plugin to remove or modify specific request headers? The bits of unique information could easily be removed, couldn't it?