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Solid colours on some webpages will not show, the background shows up in pixel/small squares instead.

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  • 1 has this problem
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  • آخرین پاسخ توسّط cor-el

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Some solid colours on certain webpages do not appear whilst on Firefox. The background will show up instead of the colour the image should be. I have tried to delete the cookies and cache on Firefox as well as trying Firefox in troubleshoot mode to no avail. Whilst writing this question, I have also discovered that taking a screenshot of the issue shows how the image should look as opposed to what the screen shows. Attached are some images of the issues I am facing, two images are of what appears on the screen and one image is the screenshot from the webpage which is what should have been shown. Apologies for some of the photos, I had to take a photo of the screen with my phone to show the issue. I have also closed the browser multiple times and restarted my computer, any help would be appreciated. Thanks in advance.

Some solid colours on certain webpages do not appear whilst on Firefox. The background will show up instead of the colour the image should be. I have tried to delete the cookies and cache on Firefox as well as trying Firefox in troubleshoot mode to no avail. Whilst writing this question, I have also discovered that taking a screenshot of the issue shows how the image should look as opposed to what the screen shows. Attached are some images of the issues I am facing, two images are of what appears on the screen and one image is the screenshot from the webpage which is what should have been shown. Apologies for some of the photos, I had to take a photo of the screen with my phone to show the issue. I have also closed the browser multiple times and restarted my computer, any help would be appreciated. Thanks in advance.
Attached screenshots

Chosen solution

This could be a problem with WebRender.

There has been a Firefox 89.0.1 version released that addresses some WebRender related issue.

Because you use Firefox from the Ubuntu repositories, you may not be able to update currently.


If you want to wait for the update then for now you can try to disable WebRender to see if that has effect.

You can disable WebRender by setting this pref to true on the the about:config page.

  • gfx.webrender.force-disabled = true

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

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Chosen Solution

This could be a problem with WebRender.

There has been a Firefox 89.0.1 version released that addresses some WebRender related issue.

Because you use Firefox from the Ubuntu repositories, you may not be able to update currently.


If you want to wait for the update then for now you can try to disable WebRender to see if that has effect.

You can disable WebRender by setting this pref to true on the the about:config page.

  • gfx.webrender.force-disabled = true

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

Modified by cor-el