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at startup firefox opens a second blank window

Posted

since the last upgrade a couple of days ago, each time I open firefox it presents me with a window which has an address resource://support-at-lastpass-dot-com-Mozilla Firefox in the header and is otherwise blank. Ive recently picked up the latest upgrade for the last pass extension to version 4.1.46a

since the last upgrade a couple of days ago, each time I open firefox it presents me with a window which has an address resource://support-at-lastpass-dot-com-Mozilla Firefox in the header and is otherwise blank. Ive recently picked up the latest upgrade for the last pass extension to version 4.1.46a

Additional System Details

Installed Plug-ins

  • Shockwave Flash 25.0 r0

Application

  • Firefox 52.0.2
  • User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0
  • Support URL: https://support.mozilla.org/1/firefox/52.0.2/WINNT/en-GB/

Extensions

  • Application Update Service Helper 2.0 (aushelper@mozilla.org)
  • Disable Prefetch 1.0 (disable-prefetch@mozilla.org)
  • Disable TLS Certificate Transparency 1.0 (disable-cert-transparency@mozilla.org)
  • DuckDuckGo Plus 1.1.2 (jid1-ZAdIEUB7XOzOJw@jetpack)
  • Ghostery 7.1.3.1 (firefox@ghostery.com)
  • LastPass: Free Password Manager 4.1.46a (support@lastpass.com)
  • Multi-process staged rollout 1.12 (e10srollout@mozilla.org)
  • Pocket 1.0.5 (firefox@getpocket.com)
  • Site Deployment Checker 1.0 (deployment-checker@mozilla.org)
  • uBlock Origin 1.12.1 (uBlock0@raymondhill.net)
  • Web Compat 1.0 (webcompat@mozilla.org)
  • Avast Online Security 12.0.163 (wrc@avast.com) (Inactive)
  • Avast SafePrice 12.0.163 (sp@avast.com) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: Intel(R) HD Graphics 4600
  • adapterDescription2:
  • adapterDeviceID: 0x0412
  • adapterDeviceID2:
  • adapterDrivers: igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32
  • adapterDrivers2:
  • adapterRAM: Unknown
  • adapterRAM2:
  • adapterSubsysID: 00000000
  • adapterSubsysID2:
  • adapterVendorID: 0x8086
  • adapterVendorID2:
  • crashGuards: []
  • currentAudioBackend: wasapi
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 10.0.14393.953
  • driverDate: 9-29-2016
  • driverDate2:
  • driverVersion: 20.19.15.4531
  • 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'available', u'description': u'Direct3D11 Compositing', u'log': [{u'status': u'available', u'type': u'default'}], 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'available', u'description': u'Direct2D', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'DIRECT2D'}, {u'status': u'available', u'description': u'Direct3D11 hardware ANGLE', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'D3D11_HW_ANGLE'}]}
  • info: {u'AzureCanvasAccelerated': 0, u'AzureCanvasBackend': u'direct2d 1.1', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'direct2d 1.1'}
  • isGPU2Active: False
  • numAcceleratedWindows: 2
  • numTotalWindows: 2
  • supportsHardwareH264: Yes; Using D3D11 API
  • webgl2Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 4600 Direct3D11 vs_5_0 ps_5_0)
  • 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
  • Moderator
17421 solutions 157401 answers

You can check the home page setting.

Firefox supports multiple home pages separated by '|' (pipe) symbols.

You can check for problems with preferences.

Delete possible user.js and numbered prefs-##.js files and rename/remove the prefs.js file to reset all prefs to the default value including prefs set via user.js and prefs that are no longer supported in current Firefox releases.

You can use this button to go to the current Firefox profile folder:

You can check the home page setting. *Options/Preferences -> General -> Startup: Home page *https://support.mozilla.org/en-US/kb/how-to-set-the-home-page Firefox supports multiple home pages separated by '|' (pipe) symbols. You can check for problems with preferences. Delete possible user.js and numbered prefs-##.js files and rename/remove the prefs.js file to reset all prefs to the default value including prefs set via user.js and prefs that are no longer supported in current Firefox releases. *http://kb.mozillazine.org/preferences_not_saved *http://kb.mozillazine.org/Resetting_preferences You can use this button to go to the current Firefox profile folder: *Help -> Troubleshooting Information -> Profile Directory:<br>Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder *http://kb.mozillazine.org/Profile_folder_-_Firefox