Spoofing user agent

[Dennis]

The two weakest leaks are agent and canvas fingerprinting. Adblock (with EasyPrivacy subscriptions) is supposed to prevent canvas finger printing but doesn't appear to be working. As far as agents, even absent random switching just spoofing an extremely common agent i.e. windows/chrome to blend in with the crowd would suffice. As it stands, the default falkon agents are infinitely rare.




‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Thursday, May 30, 2019 9:37 AM, Jukka Ruohonen <jruohonen at iki.fi> wrote:

> On Thu, May 30, 2019 at 04:18:16PM +0000, Dennis wrote:
>
> > I'm curious if its possible to spoof the user agent past the four
> > default options included in the browser. For fingerprinting, the
> > included agents come back extremely rare so they're not ideal. Thanks
>
> I was kind of thinking about a similar patch. But then again, there are so
> many other leaks that I doubt whether it makes much sense:
>
> https://arxiv.org/abs/1905.01051
>
> In any case, a trivial patch would involve the UserAgentManager and then
> NetworkUrlInterceptor::interceptRequest. For instance, it would be possible
> to change the agent randomly every N times (where N = 1000, say), having a
> big list of common agents for the random picking.
>
> -   Jukka