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The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.

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I get this message when I tray to open facebook.

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.

I get this message when I tray to open facebook. The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.

Chosen solution

There is security software like Avast and Kaspersky and BitDefender and ESET that intercepts secure connections and sends their own certificate or that incorporates special web shielding features that can block content.

If you can't inspect the certificate via Advanced (I Understand the Risks) then try this:

Open the "Add Security Exception" window by pasting this chrome URL in the Firefox location/address bar and check the certificate:

  • chrome://pippki/content/exceptionDialog.xul

In the location field of this window type or paste the URL of the website with the https:// protocol prefix (https://xxx.xxx).

  • retrieve the certificate via the "Get certificate" button
  • click the "View..." button to inspect the certificate in the Certificate Viewer

You can inspect details like the issuer and the certificate chain in the Details tab of the Certificate Viewer. Check who is the issuer of the certificate. If necessary then please attach a screenshot that shows the Certificate Viewer with the issuer.

Always be cautious when you get an 'Untrusted' error message and never create a permanent exception without investigating the cause.

Read this answer in context 3

Additional System Details

Installed Plug-ins

  • Adobe PDF Plug-In For Firefox and Netscape 15.10.20056
  • A plugin to detect whether the Adobe Application Manager is installed on this machine.
  • GEPlugin
  • Google Update
  • The plugin allows you to have a better experience with Microsoft SharePoint
  • Shockwave Flash 21.0 r0

Application

  • Firefox 45.0.1
  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0
  • Support URL: https://support.mozilla.org/1/firefox/45.0.1/WINNT/en-US/

Extensions

  • Firefox Hello Beta 0.1 (loop@mozilla.org)
  • Adobe Acrobat DC - Create PDF 15 (web2pdfextension.15@web2pdf.adobedotcom) (Inactive)
  • Avast Online Security 10.3.3.13 (wrc@avast.com) (Inactive)
  • Avast SafePrice 10.3.5.13 (sp@avast.com) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: Intel(R) HD Graphics 4600
  • adapterDescription2:
  • adapterDeviceID: 0x0416
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  • adapterDrivers2:
  • adapterRAM: Unknown
  • adapterRAM2:
  • adapterSubsysID: 1944103c
  • adapterSubsysID2:
  • adapterVendorID: 0x8086
  • adapterVendorID2:
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 6.2.9200.17568
  • driverDate: 8-8-2013
  • driverDate2:
  • driverVersion: 9.18.10.3272
  • driverVersion2:
  • info: {u'AzureCanvasBackend': u'direct2d 1.1', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'direct2d 1.1', u'AzureSkiaAccelerated': 0}
  • isGPU2Active: False
  • numAcceleratedWindows: 2
  • numTotalWindows: 2
  • supportsHardwareH264: Yes
  • webglRenderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 4600 Direct3D11 vs_5_0 ps_5_0)
  • windowLayerManagerRemote: True
  • windowLayerManagerType: Direct3D 11

Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
cor-el
  • Top 10 Contributor
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17567 solutions 158888 answers

Chosen Solution

There is security software like Avast and Kaspersky and BitDefender and ESET that intercepts secure connections and sends their own certificate or that incorporates special web shielding features that can block content.

If you can't inspect the certificate via Advanced (I Understand the Risks) then try this:

Open the "Add Security Exception" window by pasting this chrome URL in the Firefox location/address bar and check the certificate:

  • chrome://pippki/content/exceptionDialog.xul

In the location field of this window type or paste the URL of the website with the https:// protocol prefix (https://xxx.xxx).

  • retrieve the certificate via the "Get certificate" button
  • click the "View..." button to inspect the certificate in the Certificate Viewer

You can inspect details like the issuer and the certificate chain in the Details tab of the Certificate Viewer. Check who is the issuer of the certificate. If necessary then please attach a screenshot that shows the Certificate Viewer with the issuer.

Always be cautious when you get an 'Untrusted' error message and never create a permanent exception without investigating the cause.

There is security software like Avast and Kaspersky and BitDefender and ESET that intercepts secure connections and sends their own certificate or that incorporates special web shielding features that can block content. If you can't inspect the certificate via Advanced (I Understand the Risks) then try this: Open the "Add Security Exception" window by pasting this chrome URL in the Firefox location/address bar and check the certificate: *<b>chrome://pippki/content/exceptionDialog.xul</b> In the location field of this window type or paste the URL of the website with the https:// protocol prefix (https://xxx.xxx). *retrieve the certificate via the "Get certificate" button *click the "View..." button to inspect the certificate in the Certificate Viewer You can inspect details like the issuer and the certificate chain in the Details tab of the Certificate Viewer. Check who is the issuer of the certificate. If necessary then please attach a screenshot that shows the Certificate Viewer with the issuer. Always be cautious when you get an 'Untrusted' error message and never create a permanent exception without investigating the cause.