1772039 - Enabling privacy.resistFingerprinting causes the zoom cameras/screens to be a black screen.

Status: NEW

(Core :: DOM: Security, defect, P3)

Description

[Joseph.Castro.R]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:100.0) Gecko/20100101 Firefox/100.0

Steps to reproduce:

I enabled privacy.resistFingerprinting

Actual results:

When it was enabled, cameras/screens in zoom were black.

Expected results:

The cameras/screens showed the real results.

Comment 1

[Thorin [:thorin]]

zoom needs a canvas site exception

Comment 2

[Thorin [:thorin]]

(In reply to Simon Mainey from comment #1)

zoom needs a canvas site exception

https://github.com/arkenfox/user.js/issues/1116#issuecomment-778797663 - with RFP zoom returns a random wavy pattern

https://github.com/arkenfox/user.js/issues/1116#issuecomment-782878777 - webgl.disabled = true (default is false and RFP does not disable webgl), then you get a black screen

Joseph, do you have webgl.disabled = true ?

Comment 3

[Joseph.Castro.R]

(In reply to Simon Mainey from comment #2)

(In reply to Simon Mainey from comment #1)

zoom needs a canvas site exception

https://github.com/arkenfox/user.js/issues/1116#issuecomment-778797663 - with RFP zoom returns a random wavy pattern

https://github.com/arkenfox/user.js/issues/1116#issuecomment-782878777 - webgl.disabled = true (default is false and RFP does not disable webgl), then you get a black screen

Joseph, do you have webgl.disabled = true ?

Hello, Simon.
It seems that when webgl.disabled = false it does that random wavy pattern you mentioned. When webgl.disabled = true it simply returns a black screen.

Comment 4

[Thorin [:thorin]]

(In reply to Joseph.Castro.R from comment #3)

It seems that when webgl.disabled = false it does that random wavy pattern you mentioned. When webgl.disabled = true it simply returns a black screen.

So the black screen was because you disabled webgl (unless I misunderstood you). If you disable APIs, expect things to break.

The real issue is that RFP causes wavy patterns (it's doing it's job). Did you try setting a site exception for canvas, as mentioned in comment 1 - that's what it's there for.

Comment 5

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::DOM: Security' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.