1900247 - When privacy.resistFingerprinting is on can't sent image to any websites.

Status: UNCONFIRMED

(Core :: Privacy: Anti-Tracking, defect, P5)

Description

[NSM]

Attachment: VID_20240602143356.mp4

User Agent: Mozilla/5.0 (Android 10; Mobile; rv:126.0) Gecko/126.0 Firefox/126.0
Firefox for Android

Steps to reproduce:

I enabled privacy.resistFingerprinting.
Than, I go to messenger (with Desktop mode)
I share a image to an inbox. But images breaks. Not senting proper image. Sent a White page.

Actual results:

Can't sent real image. I shared i an SS. But after sending, it convert to white page.

Firefox on android
Realme 8

Expected results:

Shouldn't sent white page image.
Should sent real image I choose

Comment 1

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

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

Comment 2

[Tom Ritter [:tjr]]

This sounds like the Canvas protection is preventing the website from correctly reading the image you uploaded. After attempting this the first time, in the address bar, you should see an icon that when clicked indicates you can grant the website canvas permission - after doing so, attempting the same operation should work.

RFP is not a supported configuration - and this is a good example of the odd behavior you may encounter. We are working to see how we can improve things though.