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YouTube videos will not load in Firefox

Posted

Hi,

I cannot get YouTube videos to play in my desktop's Firefox browser. I'm running Windows 7 64-bit with Firefox 24.0.

I have searched for solutions to the problem, and tried all of these:

-Completely clearing my cache -Disabling ad blocking software on youtube.com -Installing the latest version of RealPlayer -Installing the latest version of Flash Player

None of these have worked. Every YouTube video I load just displays a large black rectangle.

What should I do?

Chosen solution

First, update your YouTube Center extension, which got two releases last month since the version you have installed. That might work using the built-in update check, or you may need to visit the Add-ons site:

  • Built-in: orange Firefox button (or Tools menu) > Add-ons > "gear" button > Check for Updates

Does that fix it?


Although the latest RealPlayer / RealDownloader should work with current Flash players, you may want to test with those disabled. You can do that on these two tabs:

orange Firefox button (or Tools menu) > Add-ons > Plugins category
orange Firefox button (or Tools menu) > Add-ons > Extensions category

Usually a link will appear above at least one disabled extension to restart Firefox. You can complete your work on the tab and click one of the links as the last step.

Does that make any difference?


Other standard steps for resolving Flash issues are as follows:

(1) Disable hardware graphics acceleration in Firefox and in Flash

(A) In Firefox, un-check the box here and restart:

orange Firefox button (or Tools menu) > Options > Advanced > General > "Use hardware acceleration when available"

(B) In Flash, see this support article from Adobe: http://helpx.adobe.com/flash-player/kb/video-playback-issues.html#main_Solve_video_playback_issues

(2) Disable protected mode (Windows Vista/7/8)

See this support article from Adobe under the heading "Last Resort": Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?

Read this answer in context 0

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.8 r800
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealPlayer Download Plugin
  • npsitesafety
  • iTunes Detector Plug-in
  • Adobe PDF Plug-In For Firefox and Netscape 11.0.04
  • RealNetworks(tm) RealDownloader Chrome Background Extension Plug-In
  • RealNetworks(tm) RealDownloader PepperFlashVideoShim Plug-In
  • RealNetworks(tm) RealDownloader HTML5VideoShim Plug-In
  • RealDownloader Plugin
  • Next Generation Java Plug-in 10.25.2 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • VLC media player Web Plugin 2.0.6
  • Google Update
  • 5.1.20513.0
  • Windows Activation Technologies Plugin for Mozilla

Application

  • Firefox 24.0
  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0
  • Support URL: https://support.mozilla.org/1/firefox/24.0/WINNT/en-US/

Extensions

  • Adblock Plus 2.3.2 ({d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d})
  • EPUBReader 1.4.2.1 ({5384767E-00D9-40E9-B72F-9CC39D655D6F})
  • Imgur Uploader 1.0.6 (giorgio@gilestro.tk)
  • RealDownloader 1.3.3 ({DF153AFF-6948-45d7-AC98-4FC4AF8A08E2})
  • Troubleshooter 1.1a (troubleshooter@mozilla.org)
  • YouTube Center 1.34.0 (jid1-cwbvBTE216jjpg@jetpack)
  • AVG Security Toolbar 17.0.1.12 (avg@toolbar) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: AMD Radeon HD 6670
  • adapterDescription2:
  • adapterDeviceID: 0x6758
  • adapterDeviceID2:
  • adapterDrivers: aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
  • adapterDrivers2:
  • adapterRAM: 2048
  • adapterRAM2:
  • adapterVendorID: 0x1002
  • adapterVendorID2:
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 6.2.9200.16571
  • driverDate: 12-19-2012
  • driverDate2:
  • driverVersion: 9.12.0.0
  • driverVersion2:
  • info: {u'AzureCanvasBackend': u'direct2d', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'direct2d'}
  • isGPU2Active: False
  • numAcceleratedWindows: 2
  • numTotalWindows: 2
  • webglRenderer: Google Inc. -- ANGLE (AMD Radeon HD 6670 Direct3D9Ex vs_3_0 ps_3_0)
  • windowLayerManagerRemote: False
  • windowLayerManagerType: Direct3D 10

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.places.smartBookmarksVersion: 4
  • browser.startup.homepage_override.buildID: 20130910160258
  • browser.startup.homepage_override.mstone: 24.0
  • browser.tabs.warnOnClose: False
  • dom.mozApps.used: True
  • dom.w3c_touch_events.expose: False
  • extensions.lastAppVersion: 24.0
  • font.internaluseonly.changed: True
  • gfx.direct3d.last_used_feature_level_idx: 0
  • gfx.direct3d.prefer_10_1: True
  • network.cookie.prefsMigrated: True
  • places.database.lastMaintenance: 1380771485
  • places.history.expiration.transient_current_max_pages: 104858
  • plugin.disable_full_page_plugin_for_types: application/pdf
  • plugin.importedState: True
  • privacy.donottrackheader.enabled: True
  • privacy.sanitize.migrateFx3Prefs: True
  • security.warn_viewing_mixed: False
  • storage.vacuum.last.index: 1
  • storage.vacuum.last.places.sqlite: 1379627991

Misc

  • User JS: No
  • Accessibility: No
jscher2000
  • Top 10 Contributor
2388 solutions 21097 answers

Chosen Solution

First, update your YouTube Center extension, which got two releases last month since the version you have installed. That might work using the built-in update check, or you may need to visit the Add-ons site:

  • Built-in: orange Firefox button (or Tools menu) > Add-ons > "gear" button > Check for Updates

Does that fix it?


Although the latest RealPlayer / RealDownloader should work with current Flash players, you may want to test with those disabled. You can do that on these two tabs:

orange Firefox button (or Tools menu) > Add-ons > Plugins category
orange Firefox button (or Tools menu) > Add-ons > Extensions category

Usually a link will appear above at least one disabled extension to restart Firefox. You can complete your work on the tab and click one of the links as the last step.

Does that make any difference?


Other standard steps for resolving Flash issues are as follows:

(1) Disable hardware graphics acceleration in Firefox and in Flash

(A) In Firefox, un-check the box here and restart:

orange Firefox button (or Tools menu) > Options > Advanced > General > "Use hardware acceleration when available"

(B) In Flash, see this support article from Adobe: http://helpx.adobe.com/flash-player/kb/video-playback-issues.html#main_Solve_video_playback_issues

(2) Disable protected mode (Windows Vista/7/8)

See this support article from Adobe under the heading "Last Resort": Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?

Question owner

Updating Youtube Center seems to have solved the problem, at least for now. Thank you!

JHW_71 0 solutions 2 answers

In the upper left corner of the URL link bar - there is a little gray shield.

LEFT CLICK IT and a drop down menu will appear - click on the selection that is marked KEEP BLOCKING - and choose - DISABLE PROTECTION ON THIS PAGE.

The videos should work now. It's a security feature that must be manually set by the user.

Hope it works!