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How do I stop the notification pop-up that 'Only secure content is displayed' that comes up nearly every time when I move to a new web page?

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This notification pop-up appears almost every time I navigate to a new page which is really annoying when I am trying to study my university subjects online.

This notification pop-up appears almost every time I navigate to a new page which is really annoying when I am trying to study my university subjects online.

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Thanks all I went to : orange Firefox button (or Tools menu) > Add-ons > Plug-in category

and found a warning that the Adobe Acrobat Plug-In 8.0.0.456 was known to be vulnerable and should be updated

after I disabled this plug in I haven't had the problem anymore.

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All Replies (6)

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Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.

You can try these free programs to scan for malware, which work with your existing antivirus software:

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.


Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Did this fix your problems? Please report back to us!

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Firefox used to have a warning somewhat like that, but now a mix of secure and insecure content is indicated by a "globe" icon instead of a padlock icon next to the URL. The insecure content is not actually blocked.

Edit: Apparently now you can block the insecure content by making a change in about:config. See cor-el's reply below.

It is possible you have an extension that blocks insecure content and displays that message? You could check the following tab, and use the Options button to see whether you can change the behavior:

orange Firefox button (or Tools menu) > Add-ons > Extensions category

Modified by jscher2000 - Support Volunteer

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You can check the security.mixed_content.* prefs on the about:config page

  • security.mixed_content.block_active_content
  • security.mixed_content.block_display_content

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Chosen Solution

Thanks all I went to : orange Firefox button (or Tools menu) > Add-ons > Plug-in category

and found a warning that the Adobe Acrobat Plug-In 8.0.0.456 was known to be vulnerable and should be updated

after I disabled this plug in I haven't had the problem anymore.

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Thanks a LOT, I installed "MalwareBytes' Anti-Malware" and it has LOADS of Malware IN IT!

I now have MORE of a malware problem then I did BEFORE I installed it!

Grrrrr!

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Hi crosetti, did you have a problem with the download from the above link posted by iamjayakumars? That site is the publisher and should be the cleanest available version of the software. Beware of imitators with similar names.