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Diagonal RGB lines appearing instead of some images

  • 5 replies
  • 1 has this problem
  • 28 views
  • Last reply by Doomwad765

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On some websites, such as https://mapgenie.io/elden-ring/maps/the-lands-betweenm images appear as these diagonal lines. Opening these websites in other browsers doesn't present the same issue.

On some websites, such as https://mapgenie.io/elden-ring/maps/the-lands-betweenm images appear as these diagonal lines. Opening these websites in other browsers doesn't present the same issue.
Attached screenshots

Chosen solution

This is likely caused by having enabled "Resist Fingerprinting" since having set the user agent set to Firefox 91.0 is one of the consequences.

You can allow canvas access via "Tools -> Page Info -> Permissions".

  • Tools -> Page Info -> Permissions -> Extract Canvas Data

You can also set this pref to false.

  • about:config => privacy.resistFingerprinting.autoDeclineNoUserInputCanvasPrompts = false

You can open the about:config page via the location/address bar. You can click the button to "Accept the Risk and Continue".

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All Replies (5)

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I'm not sure why the image I attached uploaded as greyscale actually.

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I have never experienced such an issue. It could be hardware acceleration or you have the preference to "resist fingerprinting" set to true. https://support.mozilla.org/en-US/kb/forum-response-disable-hardware-acceleration https://support.mozilla.org/en-US/kb/firefox-protection-against-fingerprinting

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Chosen Solution

This is likely caused by having enabled "Resist Fingerprinting" since having set the user agent set to Firefox 91.0 is one of the consequences.

You can allow canvas access via "Tools -> Page Info -> Permissions".

  • Tools -> Page Info -> Permissions -> Extract Canvas Data

You can also set this pref to false.

  • about:config => privacy.resistFingerprinting.autoDeclineNoUserInputCanvasPrompts = false

You can open the about:config page via the location/address bar. You can click the button to "Accept the Risk and Continue".

Helpful?

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Thank you, cor-el and terry, that fixed it

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