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Firefox blocking content!?

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When I upload my personal web page some images are missing, link banners won't display. I need to know if mozilla/firefox is censoring my sites and if so WHY? They display fine in other browsers. I used the developer console to identify the issue, seems that firefox is altering the html data to not display the link banner. See attached image.

When I upload my personal web page some images are missing, link banners won't display. I need to know if mozilla/firefox is censoring my sites and if so WHY? They display fine in other browsers. I used the developer console to identify the issue, seems that firefox is altering the html <img> data to not display the link banner. See attached image.
Bifogade skärmdumpar

Vald lösning

Firefox wouldn't normally add such a display:none!important; rule to hide an image that has a specific attribute.

Can you post a link to a publicly accessible page (i.e. no authentication or signing on required) where this happens?

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window
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Alla svar (2)

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Vald lösning

Firefox wouldn't normally add such a display:none!important; rule to hide an image that has a specific attribute.

Can you post a link to a publicly accessible page (i.e. no authentication or signing on required) where this happens?

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window
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Thanks for the reply. I did as you recommended and discovered that it was the uBlock plugin even though it reported that 0% was being blocked.