X
點擊此處開啟此網站的行動版。

技術支援討論區

The about:config options media.windows-media-foundation.enabled does not exist for me.

已張貼

I cannot play instagram videos at all, or twitter videos, tumblr videos or vines on tumblr (vines on the vine site do work). Various other random players which I don't know the name of (such as the first video on this page http://www.rugbydump.com/2016/05/5073/ben-botica-inexplicably-kicks-the-ball-away-as-harlequins-attempt-late-comeback-in-final) don't work either. As the title states, the option media.windows-media-foundation.enabled in about:config doesn't exist, and neither does media.fragmented-mp4.enabled. Changing media.mediasource.mp4.enabled or media.wmf.enabled to false does not fix the problem. I have started Firefox in safe mode, reset it and reinstalled it. I've also downloaded the feature pack for Windows 10. My graphics card drivers, plugins and add-ons are all up to date. Other data given below. This is becoming incredibly frustrating.

I cannot play instagram videos at all, or twitter videos, tumblr videos or vines on tumblr (vines on the vine site do work). Various other random players which I don't know the name of (such as the first video on this page http://www.rugbydump.com/2016/05/5073/ben-botica-inexplicably-kicks-the-ball-away-as-harlequins-attempt-late-comeback-in-final) don't work either. As the title states, the option media.windows-media-foundation.enabled in about:config doesn't exist, and neither does media.fragmented-mp4.enabled. Changing media.mediasource.mp4.enabled or media.wmf.enabled to false does not fix the problem. I have started Firefox in safe mode, reset it and reinstalled it. I've also downloaded the feature pack for Windows 10. My graphics card drivers, plugins and add-ons are all up to date. Other data given below. This is becoming incredibly frustrating.

由 4ltman 於 修改

被選擇的解決方法

thanks, so firefox depends on the decoders for h264 that your system provides (have to be separately downloaded in windows n versions). i think this one is the newest version that should apply to a fully updated version: https://www.microsoft.com/en-us/download/details.aspx?id=49919 an older download for systems before the november upgrade would be here: https://www.microsoft.com/en-us/download/details.aspx?id=48231

maybe its installation didn't work the first time?

從原來的回覆中察看解決方案 1

額外的系統細節

已安裝的外掛程式

  • Adobe PDF Plug-In For Firefox and Netscape 15.16.20039
  • Battlelog Game Launcher (2.7.1)
  • Battlelog Game Launcher (2.6.2)
  • Google Update
  • Intel web components updater - Installs and updates the Intel web components
  • Intel web components for Intel® Identity Protection Technology
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Next Generation Java Plug-in 11.91.2 for Mozilla browsers
  • The plugin allows you to have a better experience with Microsoft Lync
  • The plugin allows you to have a better experience with Microsoft SharePoint
  • NVIDIA 3D Vision Streaming plugin for Mozilla browsers
  • NVIDIA 3D Vision plugin for Mozilla browsers
  • NPWLPG
  • Shockwave Flash 21.0 r0
  • 5.1.41212.0
  • VLC media player Web Plugin
  • iTunes Detector Plug-in

應用程式

  • Firefox 46.0.1
  • 使用者代理:Mozilla/5.0 (Windows NT 10.0; WOW64; rv:46.0) Gecko/20100101 Firefox/46.0
  • 技術支援網址:https://support.mozilla.org/1/firefox/46.0.1/WINNT/en-US/

擴充套件

  • Adblock Plus 2.7.3 ({d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d})
  • Firefox Hello Beta 1.3.2 (loop@mozilla.org)
  • Multi-process staged rollout 1.0 (e10srollout@mozilla.org)
  • Personas Plus 1.7.7 (personas@christopher.beard)
  • Pocket 1.0 (firefox@getpocket.com)
  • Tab Groups 1.0.2 (tabgroups@quicksaver)
  • YouTube™ Flash® Player 1.6.2 (jid1-HAV2inXAnQPIeA@jetpack)
  • Video DownloadHelper 5.6.1 ({b9db16a4-6edc-47ec-a1f4-b86292ed211d}) (Inactive)

JavaScript

  • incrementalGCEnabled: True

圖形

  • adapterDescription: NVIDIA GeForce GTX 980
  • adapterDescription2:
  • adapterDeviceID: 0x13c0
  • adapterDeviceID2:
  • adapterDrivers: nvd3dumx,nvwgf2umx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um,nvwgf2um
  • adapterDrivers2:
  • adapterRAM: 4095
  • adapterRAM2:
  • adapterSubsysID: 31701462
  • adapterSubsysID2:
  • adapterVendorID: 0x10de
  • adapterVendorID2:
  • direct2DEnabled: False
  • direct2DEnabledMessage: [u'']
  • directWriteEnabled: False
  • directWriteVersion: 10.0.10586.0
  • driverDate: 3-21-2016
  • driverDate2:
  • driverVersion: 10.18.13.6472
  • driverVersion2:
  • info: {u'AzureContentBackend': u'cairo', u'AzureCanvasBackend': u'skia', u'AzureFallbackCanvasBackend': u'cairo', u'AzureSkiaAccelerated': 0}
  • isGPU2Active: False
  • numAcceleratedWindows: 0
  • numAcceleratedWindowsMessage: [u'']
  • numTotalWindows: 2
  • supportsHardwareH264: No; Failed to create H264 decoder
  • webglRenderer: Google Inc. -- ANGLE (NVIDIA GeForce GTX 980 Direct3D11 vs_5_0 ps_5_0)
  • windowLayerManagerRemote: True
  • windowLayerManagerType: Basic

修改過的偏好設定

其他

  • User JS: 否
  • 輔助功能: 否
philipp
  • Top 25 Contributor
  • Moderator
5282 個解決方法 23336 個答案

is the issue still reproducible while you run firefox in safemode? (that wasn't clear from your description)

is the issue still reproducible while you run firefox in safemode? (that wasn't clear from your description)

提出問題者

Yes, the issue prevails while in safe mode.

Yes, the issue prevails while in safe mode.
philipp
  • Top 25 Contributor
  • Moderator
5282 個解決方法 23336 個答案

do you get any error message instead of the video playback?

& does it make a difference when you reset all the custom entries in about:config that begin with "gfx.crash-guard.status." and restart afterwards? (supportsHardwareH264: No; Failed to create H264 decoder in your system details would suggest there may be some issues there)

do you get any error message instead of the video playback? & does it make a difference when you reset all the custom entries in about:config that begin with "gfx.crash-guard.status." and restart afterwards? (''supportsHardwareH264: No; Failed to create H264 decoder ''in your system details would suggest there may be some issues there)

提出問題者

For twitter videos it gives the error message "This browser does not support video playback." No other video types give an error message. When I click on an instagram video the play button icon disappears but it won't play. For vines on tumblr it will loop but just shows a black image, no audio. For tumblr videos it gives no response at all.

Resetting those entries make no difference.

For twitter videos it gives the error message "This browser does not support video playback." No other video types give an error message. When I click on an instagram video the play button icon disappears but it won't play. For vines on tumblr it will loop but just shows a black image, no audio. For tumblr videos it gives no response at all. Resetting those entries make no difference.
philipp
  • Top 25 Contributor
  • Moderator
5282 個解決方法 23336 個答案

what status/supported features do you get at this page? https://www.youtube.com/html5

what status/supported features do you get at this page? https://www.youtube.com/html5

提出問題者

"H.264" and "MSE & H.264" are not enabled (red ! icon). All others are fine.

"H.264" and "MSE & H.264" are not enabled (red ! icon). All others are fine.
philipp
  • Top 25 Contributor
  • Moderator
5282 個解決方法 23336 個答案

ok, this looks like the root of the issue in a likelihood. are you on a N version of windows 10 & does it say the same in a new profile? Profile Manager - Create, remove, or switch Firefox profiles

ok, this looks like the root of the issue in a likelihood. are you on a N version of windows 10 & does it say the same in a new profile? [[Use the Profile Manager to create and remove Firefox profiles]]

提出問題者

It is Windows 10 N. I've created a new profile but I don't know how to check whether it says the same as the firefox profile, I only know how to check for Windows 10 N by going to System>About in settings.

It is Windows 10 N. I've created a new profile but I don't know how to check whether it says the same as the firefox profile, I only know how to check for Windows 10 N by going to System>About in settings.
philipp
  • Top 25 Contributor
  • Moderator
5282 個解決方法 23336 個答案

選擇的解決方法

thanks, so firefox depends on the decoders for h264 that your system provides (have to be separately downloaded in windows n versions). i think this one is the newest version that should apply to a fully updated version: https://www.microsoft.com/en-us/download/details.aspx?id=49919 an older download for systems before the november upgrade would be here: https://www.microsoft.com/en-us/download/details.aspx?id=48231

maybe its installation didn't work the first time?

thanks, so firefox depends on the decoders for h264 that your system provides (have to be separately downloaded in windows n versions). i think this one is the newest version that should apply to a fully updated version: https://www.microsoft.com/en-us/download/details.aspx?id=49919 an older download for systems before the november upgrade would be here: https://www.microsoft.com/en-us/download/details.aspx?id=48231 maybe its installation didn't work the first time?

提出問題者

Wow, thanks that's fixed it. Yeah I'm not sure what happened originally, I tried downloading that earlier one just a little while ago and it did nothing, but the most recent one has done the job.

Wow, thanks that's fixed it. Yeah I'm not sure what happened originally, I tried downloading that earlier one just a little while ago and it did nothing, but the most recent one has done the job.

提出問題者

So Windows 10 has just updated, and as a result the problem has now reoccurred. To anyone else with the issue, wait for the Firefox update then download this https://www.microsoft.com/en-us/download/details.aspx?id=53356

So Windows 10 has just updated, and as a result the problem has now reoccurred. To anyone else with the issue, wait for the Firefox update then download this https://www.microsoft.com/en-us/download/details.aspx?id=53356

由 4ltman 於 修改

philipp
  • Top 25 Contributor
  • Moderator
5282 個解決方法 23336 個答案

yes, unfortunately the download changes after each major microsoft update. also see our article on the subject for current download links: Fix video and audio playback problems on Firefox for Windows

yes, unfortunately the download changes after each major microsoft update. also see our article on the subject for current download links: [[Fix video and audio playback problems on Firefox for Windows]]
James
  • Moderator
1593 個解決方法 11224 個答案

4ltman said

So Windows 10 has just updated, and as a result the problem has now reoccurred. To anyone else with the issue, wait for the Firefox update then download this

Not a issue for those who do not have a N or KN version of Windows.

''4ltman [[#answer-920230|said]]'' <blockquote> So Windows 10 has just updated, and as a result the problem has now reoccurred. To anyone else with the issue, wait for the Firefox update then download this </blockquote> Not a issue for those who do not have a N or KN version of Windows.