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Firefox won't open its own XUL file or XPS files on Vista OS

Posted

I have been using Mozilla Firefox as my browser but when I try to open a downloaded file from Firefox labelled as a .XUL extension the file will not open. I am using a HP Probook laptop (HP 6450b) with a Vista business OS. I also cannot open XPS files. I hope you can help.

I have been using Mozilla Firefox as my browser but when I try to open a downloaded file from Firefox labelled as a .XUL extension the file will not open. I am using a HP Probook laptop (HP 6450b) with a Vista business OS. I also cannot open XPS files. I hope you can help.

Chosen solution

Firefox uses the .xul file extension for some internal files. To open such a file in Firefox for display you would have to use the view-source: prefix (view-source:file:///).

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Additional System Details

Installed Plug-ins

  • Adobe PDF Plug-In For Firefox and Netscape 10.1.16
  • Google Update
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers

Application

  • Firefox 52.7.4
  • User Agent: Mozilla/5.0 (Windows NT 6.0; rv:52.0) Gecko/20100101 Firefox/52.0
  • Support URL: https://support.mozilla.org/1/firefox/52.7.4/WINNT/en-GB/

Extensions

  • Application Update Service Helper 2.0 (aushelper@mozilla.org)
  • Avast Online Security 12.0.296 (wrc@avast.com)
  • Multi-process staged rollout 1.10 (e10srollout@mozilla.org)
  • Pocket 1.0.5 (firefox@getpocket.com)
  • Web Compat 1.0 (webcompat@mozilla.org)
  • Avast SafePrice 12.0.579 (sp@avast.com) (Inactive)
  • Microsoft .NET Framework Assistant 0.0.0 ({20a82645-c095-46ed-80e3-08825760534b}) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: Intel(R) HD Graphics
  • adapterDescription2:
  • adapterDeviceID: 0x0046
  • adapterDeviceID2:
  • adapterDrivers: igdumdx32 igd10umd32
  • adapterDrivers2:
  • adapterRAM: Unknown
  • adapterRAM2:
  • adapterSubsysID: 146e103c
  • adapterSubsysID2:
  • adapterVendorID: 0x8086
  • adapterVendorID2:
  • crashGuards: []
  • currentAudioBackend: wasapi
  • direct2DEnabled: False
  • direct2DEnabledMessage: [u'']
  • directWriteEnabled: False
  • directWriteVersion: 0.0.0.0
  • driverDate: 10-21-2011
  • driverDate2:
  • driverVersion: 8.15.10.2559
  • driverVersion2:
  • featureLog: {u'fallbacks': [], u'features': [{u'status': u'available', u'description': u'Compositing', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'HW_COMPOSITING'}, {u'status': u'unavailable', u'description': u'Direct3D11 Compositing', u'log': [{u'status': u'available', u'type': u'default'}, {u'status': u'unavailable', u'message': u'Direct3D11 not available on this computer', u'type': u'runtime'}], u'name': u'D3D11_COMPOSITING'}, {u'status': u'disabled', u'description': u'Direct3D9 Compositing', u'log': [{u'status': u'disabled', u'message': u'Disabled by default', u'type': u'default'}], u'name': u'D3D9_COMPOSITING'}, {u'status': u'unavailable', u'description': u'Direct2D', u'log': [{u'status': u'available', u'type': u'default'}, {u'status': u'unavailable', u'message': u'Failed to acquire a Direct2D 1.1 factory', u'type': u'runtime'}], u'name': u'DIRECT2D'}, {u'status': u'disabled', u'description': u'Direct3D11 hardware ANGLE', u'log': [{u'status': u'available', u'type': u'default'}, {u'status': u'disabled', u'message': u'D3D11 compositing is disabled', u'type': u'env'}], u'name': u'D3D11_HW_ANGLE'}]}
  • info: {u'ApzWheelInput': 1, u'ApzTouchInput': 1, u'AzureFallbackCanvasBackend': u'cairo', u'AzureCanvasAccelerated': 0, u'AzureCanvasBackend': u'skia', u'AzureContentBackend': u'skia'}
  • isGPU2Active: False
  • numAcceleratedWindows: 0
  • numAcceleratedWindowsMessage: [u'']
  • numTotalWindows: 1
  • supportsHardwareH264: No; Failed to create H264 decoder
  • webgl2Renderer: WebGL creation failed: * Error during ANGLE OpenGL init. * Error during ANGLE OpenGL init. * Error during ANGLE OpenGL init. * Error during ANGLE OpenGL init. * Error during ANGLE OpenGL init. * Exhausted GL driver caps.
  • webglRenderer: Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0)
  • windowLayerManagerRemote: True
  • windowLayerManagerType: Basic

Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
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Chosen Solution

Firefox uses the .xul file extension for some internal files. To open such a file in Firefox for display you would have to use the view-source: prefix (view-source:file:///).

Firefox uses the .xul file extension for some internal files. To open such a file in Firefox for display you would have to use the view-source: prefix (view-source:file:///).

Question owner

Thank you for your help.

                                        KeithatHowrah
Thank you for your help. KeithatHowrah