1480908 - When privacy.resistFingerprinting is activated screen resolution should be set to a more common value.

Status: RESOLVED DUPLICATE of bug 1475825

(Core :: Window Management, defect)

Description

[Random_Name_463475]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:59.0) Gecko/20100101 Firefox/59.0
Build ID: 20180326232916

Steps to reproduce:

I activated privacy.resistFingerprinting in about:config.


Actual results:

The screen resolution was set to 1920x923x24.


Expected results:

This resolution is used very seldom. According to https://panopticlick.eff.org/ only by one in 15861.56 cases and according to https://amiunique.org/ in less than 0.1 per-cent of the cases. This was probably inherited from Tor. But Tor sets the screen actually to this resolution by standard, which may make certain resolutions more feasible. (Firefox browsers may also do this manually, but I think most are not doing it, and there seems to me no function to do it automatically.) Also, it is pretty easy to see if someone comes from Tor, so probably the main objective is to make the Tor browser indistinguishable from each other.

Comment 1

[Random_Name_463475]

I have forgotten to add: The screen resolution should probably be set to the most common resolution, which, according to https://www.w3schools.com/browsers/browsers_display.asp , is 1366x768.