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YouTube wont play videos

Posted

Just within the last few days Youtube wont play videos. Any ideas why this might be they work in IE.

Just within the last few days Youtube wont play videos. Any ideas why this might be they work in IE.

Additional System Details

Installed Plug-ins

  • Shockwave Flash 15.0 r0
  • Google Update
  • NVIDIA 3D Vision plugin for Mozilla browsers
  • NVIDIA 3D Vision Streaming plugin for Mozilla browsers
  • Adobe PDF Plug-In For Firefox and Netscape 11.0.9
  • 5.1.30514.0
  • iTunes Detector Plug-in
  • Intel web components for Intel® Identity Protection Technology
  • Intel web components updater - Installs and updates the Intel web components

Application

  • Firefox 33.1.1
  • User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0
  • Support URL: https://support.mozilla.org/1/firefox/33.1.1/WINNT/en-US/

Extensions

  • Troubleshooter 1.1a (troubleshooter@mozilla.org)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: NVIDIA GeForce GTX TITAN Black
  • adapterDescription2:
  • adapterDeviceID: 0x100c
  • adapterDeviceID2:
  • adapterDrivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
  • adapterDrivers2:
  • adapterRAM: 4095
  • adapterRAM2:
  • adapterVendorID: 0x10de
  • adapterVendorID2:
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 6.3.9600.17111
  • driverDate: 11-12-2014
  • driverDate2:
  • driverVersion: 9.18.13.4475
  • driverVersion2:
  • info: {u'AzureCanvasBackend': u'direct2d', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'direct2d', u'AzureSkiaAccelerated': 0}
  • isGPU2Active: False
  • numAcceleratedWindows: 1
  • numTotalWindows: 1
  • webglRenderer: Google Inc. -- ANGLE (NVIDIA GeForce GTX TITAN Black Direct3D9Ex vs_3_0 ps_3_0)
  • windowLayerManagerRemote: True
  • windowLayerManagerType: Direct3D 11

Modified Preferences

  • accessibility.typeaheadfind.flashBar: 0
  • browser.cache.disk.capacity: 358400
  • browser.cache.disk.smart_size.first_run: False
  • browser.cache.disk.smart_size.use_old_max: False
  • browser.cache.disk.smart_size_cached_value: 358400
  • browser.cache.frecency_experiment: 1
  • browser.places.smartBookmarksVersion: 7
  • browser.sessionstore.upgradeBackup.latestBuildID: 20141113143407
  • browser.startup.homepage: https://www.google.co.uk/?gws_rd=ssl
  • browser.startup.homepage_override.buildID: 20141113143407
  • browser.startup.homepage_override.mstone: 33.1.1
  • browser.tabs.warnOnClose: False
  • dom.mozApps.used: True
  • extensions.lastAppVersion: 33.1.1
  • gfx.direct3d.last_used_feature_level_idx: 0
  • media.gmp-gmpopenh264.lastUpdate: 1415414461
  • media.gmp-gmpopenh264.version: 1.1
  • media.gmp-manager.lastCheck: 1417136634
  • network.cookie.prefsMigrated: True
  • places.database.lastMaintenance: 1417134249
  • places.history.expiration.transient_current_max_pages: 104858
  • plugin.disable_full_page_plugin_for_types: application/pdf
  • plugin.importedState: True
  • privacy.sanitize.migrateFx3Prefs: True
  • storage.vacuum.last.index: 1
  • storage.vacuum.last.places.sqlite: 1416588052

Misc

  • User JS: No
  • Accessibility: No
FredMcD
  • Top 10 Contributor
4224 solutions 58943 answers

Helpful Reply

Please give more details. Is this with just YouTube, or are there any problems on other sites? What does / does not happen? Does the web page load? Are there any error or other messages?

Please give more details. Is this with just YouTube, or are there any problems on other sites? What does / does not happen? Does the web page load? Are there any error or other messages?
cor-el
  • Top 10 Contributor
  • Moderator
17415 solutions 157316 answers

Helpful Reply

YouTube sends MP4 or WebM files to visitors with Firefox 33 and above.

YouTube sends MP4 or WebM files to visitors with Firefox 33 and above. *http://www.ghacks.net/2014/07/17/google-enforces-html5-youtube-firefox-33-newer/
harshness 0 solutions 5 answers

Aren't all YouTube videos from YouTube???

The player just won't start. You can move the time pointer and it will show the appropriate stills. Reloading the page doesn't help.

There are no error messages. The HTML5 player is active.

Aren't all YouTube videos from YouTube??? The player just won't start. You can move the time pointer and it will show the appropriate stills. Reloading the page doesn't help. There are no error messages. The HTML5 player is active.
FredMcD
  • Top 10 Contributor
4224 solutions 58943 answers

Chosen Solution

'''[https://www.adobe.com/software/flash/about/ Flash Player Test Page]''' '''http://helpx.adobe.com/flash-player/kb/installation-problems-flash-player-windows.html''' '''http://helpx.adobe.com/flash-player/kb/installation-problems-flash-player-mac.html'''
cor-el
  • Top 10 Contributor
  • Moderator
17415 solutions 157316 answers

You can try to disable OMTC and leave hardware acceleration in Firefox enabled.

  • about:config page: layers.offmainthreadcomposition.enabled = false

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window
You can try to disable OMTC and leave hardware acceleration in Firefox enabled. *<b>about:config</b> page: <b>layers.offmainthreadcomposition.enabled</b> = false Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem. *Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance *Do NOT click the Reset button on the Safe Mode start window *https://support.mozilla.org/kb/Safe+Mode *https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
harshness 0 solutions 5 answers

Google has been using HTML5 with Firefox for a while so chasing after Flash doesn't make sense unless you also do the HTML5 avoidance maneuver.

Google has been using HTML5 with Firefox for a while so chasing after Flash doesn't make sense unless you also do the HTML5 avoidance maneuver.