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Disable "Unable to connect" frames / placeholders for blocked content. (browser.display.show_image_placeholders didn't do it)

bitpir8
bitpir8
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HOSTS file blocks advertising domains. Firefox now shows "Unable to connect" pages everywhere on a site that an advertising domain is blocked. Long ago setting browser.display.show_image_placeholders to false fixed this. Doesn't anymore. How does this work now?

HOSTS file blocks advertising domains. Firefox now shows "Unable to connect" pages everywhere on a site that an advertising domain is blocked. Long ago setting browser.display.show_image_placeholders to false fixed this. Doesn't anymore. How does this work now?

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Gingerbread Man
Gingerbread Man
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You should use Adblock Plus instead.

You can try the following, but error messages will pop up in dialog boxes instead of showing in the respective tab.

  1. Type about:config into the address bar and press Enter.
  2. To bypass the warning, press the big button labeled "I'll be careful, I promise!".
  3. In the search box, paste browser.xul.error_pages.enabled
  4. In the search results, double-click browser.xul.error_pages.enabled to set its value to false.