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Windows 7: Firefox won't play twitter videos

07 Mar 2016   #1

Windows 7 Home Premium x64
Firefox won't play twitter videos

I've had this problem for a while now where twitter won't play videos. All I see the first frame of the video and an error message that says "This browser does not support video playback."

My System SpecsSystem Spec
09 Mar 2016   #2

Microsoft Windows 7 Home Premium SP1 64-bit Build 7600 / Microsoft Windows XP Professional SP3

Look under about:support page (type about:support in adress bar), copy data to clipboard and post it here, probably, H264 Hardware accelerated decoding is not enabled in your system...
My System SpecsSystem Spec
11 Mar 2016   #3

Windows 7 Home Premium x64

Application Basics

Name: Firefox
Version: 44.0.2
Build ID: 20160210153822
Update Channel: release
User Agent: Mozilla/5.0 (Windows NT 5.1; rv:40.0) Gecko/20100101 Firefox/44.0.2
Multiprocess Windows: 0/2 (default: false)
Safe Mode: false

Crash Reports for the Last 3 Days

Report ID: bp-aa417f26-053f-44cb-9ecc-4e0972160312
Submitted: 2 hours ago

All Crash Reports


Name: Adblock Plus
Version: 2.7.2
Enabled: true
ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Name: DownThemAll!
Enabled: true
ID: {DDC359D1-844A-42a7-9AA1-88A850A938A8}

Name: Element Hiding Helper for Adblock Plus
Version: 1.3.7
Enabled: true

Name: Hide Unwanted Results of Google Search
Version: 1.6
Enabled: true
ID: jid0-TpZJ4wPImlT1zIqfw58bD9vOeWQ@jetpack

Name: Video DownloadHelper
Version: 5.5.0a16
Enabled: true
ID: {b9db16a4-6edc-47ec-a1f4-b86292ed211d}

Name: VLC Youtube Shortcut
Enabled: true
ID: vlc_shortcut@kosan.kosan

Name: YouTube™ Flash® Player
Version: 1.6.2
Enabled: true
ID: jid1-HAV2inXAnQPIeA@jetpack

Name: Microsoft .NET Framework Assistant
Version: 1.0
Enabled: false
ID: {20a82645-c095-46ed-80e3-08825760534b}


Adapter Description: ATI Mobility Radeon X1600
Adapter Drivers: ati2dvag
Adapter RAM: Unknown
Asynchronous Pan/Zoom: none
Device ID: 0x71c5
Direct2D Enabled: Blocked for your graphics driver version. Try updating your graphics driver to version 9.6 or newer.
DirectWrite Enabled: false (
Driver Date: 2-13-2009
Driver Version: 8.590.0.0
GPU #2 Active: false
GPU Accelerated Windows: 2/2 Direct3D 9 (OMTC)
Subsys ID: 30a3103c
Supports Hardware H264 Decoding: No; Failed to create H264 decoder
Vendor ID: 0x1002
WebGL Renderer: Google Inc. -- ANGLE (ATI Mobility Radeon X1600 Direct3D9 vs_3_0 ps_3_0)
windowLayerManagerRemote: true
AzureCanvasBackend: skia
AzureContentBackend: cairo
AzureFallbackCanvasBackend: cairo
AzureSkiaAccelerated: 0

Important Modified Preferences

accessibility.typeaheadfind.flashBar: 0
browser.cache.disk.capacity: 235520
browser.cache.disk.filesystem_reported: 1
browser.cache.disk.hashstats_reported: 1
browser.cache.disk.smart_size.first_run: false
browser.cache.frecency_experiment: 2 true false
browser.places.smartBookmarksVersion: 7 true
browser.sessionstore.upgradeBackup.latestBuildID: 20160210153822
browser.startup.homepage: Google
browser.startup.homepage_override.buildID: 20160210153822
browser.startup.homepage_override.mstone: 44.0.2
browser.tabs.remote.disabled-for-a11y: true
dom.apps.reset-permissions: true
dom.mozApps.used: true
extensions.lastAppVersion: 44.0.2
font.internaluseonly.changed: false
general.useragent.override: Mozilla/5.0 (Windows NT 5.1; rv:40.0) Gecko/20100101 Firefox/44.0.2
gfx.crash-guard.d3d11layers.appVersion: 44.0.2
gfx.crash-guard.d3d11layers.deviceID: 0x71c5
gfx.crash-guard.d3d11layers.driverVersion: 8.590.0.0
gfx.crash-guard.d3d11layers.feature-d2d: false
gfx.crash-guard.d3d11layers.feature-d3d11: false
gfx.crash-guard.glcontext.gfx.driver-init.direct3d11-angle: false
gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle: false
gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-d3d11: false
gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-warp: false
gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-try-d3d11: true
gfx.crash-guard.status.d3d11layers: 2
gfx.crash-guard.status.glcontext: 2
gfx.driver-init.appVersion: 42.0
gfx.driver-init.deviceID: 0x71c5
gfx.driver-init.driverVersion: 8.593.0.0
gfx.driver-init.feature-d2d: false
gfx.driver-init.feature-d3d11: false
gfx.driver-init.status: 2
layers.acceleration.force-enabled: true
media.gmp-gmpopenh264.abi: x86-msvc-x86
media.gmp-gmpopenh264.lastUpdate: 1454445720
media.gmp-gmpopenh264.version: 1.5.3
media.gmp-manager.buildID: 20160210153822
media.gmp-manager.lastCheck: 1457740884
media.hardware-video-decoding.failed: true true
media.mediasource.webm.enabled: true
media.webrtc.debug.aec_log_dir: E:\DOCUME~1\User\LOCALS~1\Temp
media.webrtc.debug.log_file: E:\DOCUME~1\User\LOCALS~1\Temp\WebRTC.log
network.cookie.prefsMigrated: true
network.predictor.cleaned-up: true
places.database.lastMaintenance: 1457741062
places.history.expiration.transient_current_max_pages: 13504
plugin.disable_full_page_plugin_for_types: application/pdf
plugin.importedState: true
print.printer_Microsoft_XPS_Document_Writer.print_bgcolor: false
print.printer_Microsoft_XPS_Document_Writer.print_bgimages: false
print.printer_Microsoft_XPS_Document_Writer.print_duplex: -437918235
print.printer_Microsoft_XPS_Document_Writer.print_edge_bottom: 0
print.printer_Microsoft_XPS_Document_Writer.print_edge_left: 0
print.printer_Microsoft_XPS_Document_Writer.print_edge_right: 0
print.printer_Microsoft_XPS_Document_Writer.print_edge_top: 0
print.printer_Microsoft_XPS_Document_Writer.print_evenpages: true
print.printer_Microsoft_XPS_Document_Writer.print_footerleft: &PT
print.printer_Microsoft_XPS_Document_Writer.print_footerright: &D
print.printer_Microsoft_XPS_Document_Writer.print_headerleft: &T
print.printer_Microsoft_XPS_Document_Writer.print_headerright: &U
print.printer_Microsoft_XPS_Document_Writer.print_in_color: true
print.printer_Microsoft_XPS_Document_Writer.print_margin_bottom: 0.5
print.printer_Microsoft_XPS_Document_Writer.print_margin_left: 0.5
print.printer_Microsoft_XPS_Document_Writer.print_margin_right: 0.5
print.printer_Microsoft_XPS_Document_Writer.print_margin_top: 0.5
print.printer_Microsoft_XPS_Document_Writer.print_oddpages: true
print.printer_Microsoft_XPS_Document_Writer.print_orientation: 0
print.printer_Microsoft_XPS_Document_Writer.print_page_delay: 50
print.printer_Microsoft_XPS_Document_Writer.print_paper_data: 1
print.printer_Microsoft_XPS_Document_Writer.print_paper_height: 11.00
print.printer_Microsoft_XPS_Document_Writer.print_paper_size_type: 0
print.printer_Microsoft_XPS_Document_Writer.print_paper_size_unit: 0
print.printer_Microsoft_XPS_Document_Writer.print_paper_width: 8.50
print.printer_Microsoft_XPS_Document_Writer.print_resolution: -437918235
print.printer_Microsoft_XPS_Document_Writer.print_reversed: false
print.printer_Microsoft_XPS_Document_Writer.print_scaling: 1.00
print.printer_Microsoft_XPS_Document_Writer.print_shrink_to_fit: true
print.printer_Microsoft_XPS_Document_Writer.print_to_file: false
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print.printer_Microsoft_XPS_Document_Writer.print_unwriteable_margin_right: 0
print.printer_Microsoft_XPS_Document_Writer.print_unwriteable_margin_top: 0
privacy.cpd.offlineApps: true
privacy.cpd.siteSettings: true
privacy.donottrackheader.enabled: true
privacy.sanitize.migrateClearSavedPwdsOnExit: true
privacy.sanitize.migrateFx3Prefs: true
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1455419324
webgl.force-enabled: true

Important Locked Preferences


Incremental GC: true


Activated: false
Prevent Accessibility: 0

Library Versions

Expected minimum version: 4.11
Version in use: 4.11

Expected minimum version: 3.21 Basic ECC
Version in use: 3.21 Basic ECC

Expected minimum version: 3.21 Basic ECC
Version in use: 3.21 Basic ECC

Expected minimum version: 3.21 Basic ECC
Version in use: 3.21 Basic ECC

Expected minimum version: 3.21
Version in use: 3.21

Experimental Features
My System SpecsSystem Spec

11 Mar 2016   #4

Microsoft Windows 7 Home Premium SP1 64-bit Build 7600 / Microsoft Windows XP Professional SP3

Well, from what I see, Direct2D is disabled, so no hardware accelerated layers or cleartype is enabled, also, H264 decoding is disabled as well. You driver is from 2009 which could explain why those features are disabled. Try updating your drivers from here Download Drivers using the automatic detection tool, there should be at least a 2010 driver for you, which should enable at least hardware acceleration for the main browser thread (therefore, accelerating your browsing experience).

If you happen to update your drivers to the latest version (at least superior than the 2009 one you currently have) and H264 decoding is still blacklisted for your GPU, look for media.hardware-video-decoding.failed: true in about:config page and set that to false, restarting your browser afterwards.

If this last works for you, Firefox could revert this setting back if any update is available, in that case, you can always create a user.js file with this pasted into it:
user_pref("media.hardware-video-decoding.failed", false);
and saved in the same place your profile files are located (typicaly C:\Users\[Your Username]\AppData\Roaming\Mozilla\Firefox\Profiles\[Your Profile or xxxxx.default if you use FF defaults]
This way you will always override Firefox GPU detection.
(I leave the file zipped with the pref for a quick use in case you need it)

But first, try updating your drivers, 2009 drvers for any AMD card are known for being blacklisted and being problematic with Firefox, I had to do that with my HD 3200 card...

Hope this helps you

Attached Files
File Type: zip (172 Bytes, 4 views)
My System SpecsSystem Spec
13 Mar 2016   #5

Windows 7 Home Premium x64

I enabled direct2d, H264 decoding and my graphics card drivers are the latest that the computer manufacturer made and twitter videos still won't play. and windows says that the autodetect utility isn't a valid win32 application.
My System SpecsSystem Spec
13 Mar 2016   #6

Microsoft Windows 7 Home Premium SP1 64-bit Build 7600 / Microsoft Windows XP Professional SP3

That's weird...
Try the autodetect utility from this zip file, it should work, taking in mind you mention in your specs your OS is 64 bit Home Basic...
Let me know if this worked, if the same error appears, I suggest to backup your bookmarks, go to about:support and click on "Refresh Firefox", also, do a full AV scan to your PC, with your preffered AV software, but also with Malwarebytes AntiMalware Free, just to discard you didn't catch an infection over your system (that "not valid win32..." error is suspicious...)

Attached Files
File Type: rar autodetectutility.rar (1.52 MB, 14 views)
My System SpecsSystem Spec
15 Mar 2016   #7

Windows 7 Home Premium x64

winrar gives me this message Cannot execute "C:\DOCUME~1\User\LOCALS~1\Temp\Rar$EXa0.807\autodetectutility.exe"
windows gives me this message C:\Documents and Settings\User\Desktop\autodetectutility.exe is not a valid Win32 application
command prompt gives me this message "C:\Documents and Settings\User\Desktop\autodetectutility.exe" Access is denied
My System SpecsSystem Spec
15 Mar 2016   #8

Microsoft Windows 7 Home Premium SP1 64-bit Build 7600 / Microsoft Windows XP Professional SP3

Are you using an Administrator account (I mean, any account that is an administrator, not the admin account itself)? Looks like a Basic account limitation...
My System SpecsSystem Spec
15 Mar 2016   #9

Windows 7 Home Premium x64

No, I'm an admin
My System SpecsSystem Spec
15 Mar 2016   #10

Microsoft Windows 7 Home Premium SP1 64-bit Build 7600 / Microsoft Windows XP Professional SP3

Run a full AV scan on your system, also, get Malwarebytes Free, install, and run a full scan on your system.

I feel you got malware issues, not being able to run setup executables feels suspicious to me...

P.S. Don't worry about the trial thing, that only enables realtime protection and extra settings, manual scan and removal tools will be still there.
My System SpecsSystem Spec

 Firefox won't play twitter videos

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