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firefox cannot install Video Download Helper,

已張貼

after downloading video download helper,firefox asks to install now,when i do it tells me it,firefox,cannot install

after downloading video download helper,firefox asks to install now,when i do it tells me it,firefox,cannot install

被選擇的解決方法

thank you FredMcD deleting the files you suggested has solved the problem. agan,thanks mate

從原來的回覆中察看解決方案 4

額外的系統細節

已安裝的外掛程式

  • Adobe PDF Plug-In For Firefox and Netscape 11.0.06
  • npdivxplayerplugin
  • DivX Web Player version 1.4.2.7
  • DivX® Content Upload Plugin
  • Google Update
  • MetaStream 3 Plugin r4
  • DRM Netscape Network Object
  • DRM Store Netscape Plugin
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Shockwave Flash 19.0 r0
  • 5.1.30514.0
  • Version 1.1.4, copyright 1996-2010 The VideoLAN Teamhttp://www.videolan.org/
  • Npdsplay dll
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • iTunes Detector Plug-in

應用程式

  • Firefox 42.0
  • 使用者代理:Mozilla/5.0 (Windows NT 4.0; rv:42.0) Gecko/20100101 Firefox/42.0
  • 技術支援網址:https://support.mozilla.org/1/firefox/42.0/WINNT/en-US/

擴充套件

JavaScript

  • incrementalGCEnabled: True

圖形

  • adapterDescription: NVIDIA GeForce4 MX 420 (Microsoft Corporation)
  • adapterDescription2:
  • adapterDeviceID: 0x0172
  • adapterDeviceID2:
  • adapterDrivers: nv4_disp
  • adapterDrivers2:
  • adapterRAM: Unknown
  • adapterRAM2:
  • adapterSubsysID: 02ab1043
  • adapterSubsysID2:
  • adapterVendorID: 0x10de
  • adapterVendorID2:
  • direct2DEnabled: False
  • direct2DEnabledMessage: [u'']
  • directWriteEnabled: False
  • directWriteVersion: 0.0.0.0
  • driverDate: 4-7-2004
  • driverDate2:
  • driverVersion: 5.6.7.3
  • driverVersion2:
  • failures: [u'[GFX1]: [D3D9] insufficient capabilities', u'[GFX1]: [D3D9] insufficient capabilities', u'[GFX1]: [D3D9] Could not Initialize the DeviceManagerD3D9', u'[GFX1]: [D3D9] Could not Initialize the DeviceManagerD3D9', u'[GFX1]: [D3D9] insufficient capabilities', u'[GFX1]: [D3D9] Could not Initialize the DeviceManagerD3D9']
  • indices: [0, 6, 7, 3, 4, 5]
  • info: {u'AzureCanvasBackend': u'skia', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'cairo', u'AzureSkiaAccelerated': 0}
  • isGPU2Active: False
  • numAcceleratedWindows: 0
  • numAcceleratedWindowsMessage: [u'']
  • numTotalWindows: 1
  • supportsHardwareH264: False
  • webglRendererMessage: [u'']
  • windowLayerManagerRemote: True
  • windowLayerManagerType: Basic

修改過的偏好設定

其他

  • User JS: 否
  • 輔助功能: 否
FredMcD
  • Top 10 Contributor
4267 個解決方法 59838 個答案

I have it on my system. No problem. Contact it's support site.

I have it on my system. No problem. Contact it's support site.
cor-el
  • Top 10 Contributor
  • Moderator
17567 個解決方法 158896 個答案

Your user agent shows that you run Firefox in compatibility mode for Windows 95 (NT 4.0).

Check that you do not run Firefox in compatibility mode. You can open the Properties of the Firefox desktop shortcut via the right-click context menu and check the "Compatibility" tab. Make sure that all items are deselected in the "Compatibility" tab of the Properties window.

Your user agent shows that you run Firefox in compatibility mode for Windows 95 (NT 4.0). Check that you do not run Firefox in compatibility mode. You can open the Properties of the Firefox desktop shortcut via the right-click context menu and check the "Compatibility" tab. Make sure that all items are deselected in the "Compatibility" tab of the Properties window.

提出問題者

cor-el said

Your user agent shows that you run Firefox in compatibility mode for Windows 95 (NT 4.0). Check that you do not run Firefox in compatibility mode. You can open the Properties of the Firefox desktop shortcut via the right-click context menu and check the "Compatibility" tab. Make sure that all items are deselected in the "Compatibility" tab of the Properties window.

still no joy.the following always pops up after clicking install now Video Download Helper could not be installed because Firefox cannot modify the needed file.thanks anyways

''cor-el [[#answer-804771|said]]'' <blockquote> Your user agent shows that you run Firefox in compatibility mode for Windows 95 (NT 4.0). Check that you do not run Firefox in compatibility mode. You can open the Properties of the Firefox desktop shortcut via the right-click context menu and check the "Compatibility" tab. Make sure that all items are deselected in the "Compatibility" tab of the Properties window. </blockquote> still no joy.the following always pops up after clicking install now Video Download Helper could not be installed because Firefox cannot modify the needed file.thanks anyways
FredMcD
  • Top 10 Contributor
4267 個解決方法 59838 個答案

有幫助的回覆

Does it say what file?

It is possible that there is a problem with the file(s) that store the extensions registry.

Delete the extensions.* files (e.g. extensions.json, extensions.sqlite, extensions.ini) and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

See "Corrupt extension files":

Does it say what file? It is possible that there is a problem with the file(s) that store the extensions registry. Delete the extensions.* files (e.g. extensions.json, extensions.sqlite, extensions.ini) and compatibility.ini in the Firefox profile folder to reset the extensions registry. *https://support.mozilla.org/kb/Profiles New files will be created when required. See "Corrupt extension files": *http://kb.mozillazine.org/Unable_to_install_themes_or_extensions *https://support.mozilla.org/kb/Unable+to+install+add-ons

選擇的解決方法

thank you FredMcD deleting the files you suggested has solved the problem. agan,thanks mate

thank you FredMcD deleting the files you suggested has solved the problem. agan,thanks mate