X
Tap here to go to the mobile version of the site.

Support Forum

audio and video out of sync on some playbacks

Posted

I just started having a problem on a couple websites when I stream movies. The audio is out of sync with the video. I have experienced this a few times in the past and could stop the playback and restart it to solve the problem. That is not fixing the problem now. I keep my cache cleared out so that is not the culprit.

It's only on a couple websites and they always played fine before. How do I track down the problem?

                                          thanks.
I just started having a problem on a couple websites when I stream movies. The audio is out of sync with the video. I have experienced this a few times in the past and could stop the playback and restart it to solve the problem. That is not fixing the problem now. I keep my cache cleared out so that is not the culprit. It's only on a couple websites and they always played fine before. How do I track down the problem? thanks.

Modified by ligeperry

Chosen solution

Hello,

Try Firefox Safe Mode to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.

(If you're not using it, switch to the Default theme.)

  • On Windows you can open Firefox 4.0+ in Safe Mode by holding the Shift key when you open the Firefox desktop or Start menu shortcut.
  • On Mac you can open Firefox 4.0+ in Safe Mode by holding the option key while starting Firefox.
  • On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
  • Or open the Help menu and click on the Restart with Add-ons Disabled... menu item while Firefox is running.

FirefoxSafeMode

Once you get the pop-up, just select "'Start in Safe Mode" Safe Mode Fx 15 - Win

If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, and you need to figure out which one. Please follow the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article for that.

To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.

When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.

Thank you.

Read this answer in context 0

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.9 r900
  • Google Update
  • Adobe PDF Plug-In For Firefox and Netscape 11.0.05
  • 5.1.20913.0
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealPlayer Download Plugin
  • RealNetworks(tm) RealDownloader Chrome Background Extension Plug-In
  • RealNetworks(tm) RealDownloader PepperFlashVideoShim Plug-In
  • RealNetworks(tm) RealDownloader HTML5VideoShim Plug-In
  • RealDownloader Plugin
  • GEPlugin
  • Next Generation Java Plug-in 10.25.2 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • CANON iMAGE GATEWAY Album Plugin Utility Module for IJ
  • NVIDIA 3D Vision Streaming plugin for Mozilla browsers
  • NVIDIA 3D Vision plugin for Mozilla browsers
  • NPWLPG

Application

  • Firefox 25.0.1
  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0
  • Support URL: https://support.mozilla.org/1/firefox/25.0.1/WINNT/en-US/

Extensions

  • 1-Click YouTube Video Downloader 2.1.9 (YoutubeDownloader@PeterOlayev.com)
  • Adblock Plus 2.4 ({d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d})
  • AddThis 3.5.9 ({3e0e7d2a-070f-4a47-b019-91fe5385ba79})
  • Ant Video Downloader 2.4.7.11 (anttoolbar@ant.com)
  • BrowserProtect 1.1.3 (browserprotect@browserprotect.com)
  • deskCut 0.6.0.3 ({9125C9CB-BE2B-4389-A0C7-46A4BDD46AEA})
  • DivX Web Player 2.0.2.039 (DivXWebPlayer@divx.com)
  • DoNotTrackMe 2.2.9.618 (donottrackplus@abine.com)
  • Download Statusbar 0.9.10 ({D4DD63FA-01E4-46a7-B6B1-EDAB7D6AD389})
  • DownloadHelper 4.9.21 ({b9db16a4-6edc-47ec-a1f4-b86292ed211d})
  • DownThemAll! 2.0.16 ({DDC359D1-844A-42a7-9AA1-88A850A938A8})
  • Flash Video Downloader 4.0.7 (artur.dubovoy@gmail.com)
  • Flashblock 1.5.17 ({3d7eb24f-2740-49df-8937-200b1cc08f8a})
  • Light Switch 0.7 ({600452e8-6851-46db-80fd-fa571b2deaa7})
  • Quebles Emoticons 1.0.9 ({B2AB711D-5D6E-4DDF-AE15-479A93450D48})
  • RealDownloader 1.3.3 ({DF153AFF-6948-45d7-AC98-4FC4AF8A08E2})
  • Troubleshooter 1.1a (troubleshooter@mozilla.org)
  • Universal Downloader 21.5.0 ({9051303c-7e41-4311-a783-d6fe5ef2832d})
  • Updated Ad Blocker for Firefox 11+ 0.7.7 ({4DC70064-89E2-4a55-8FC6-E8CDEAE3618C})
  • FastestFox 5.2.1 (smarterwiki@wikiatic.com) (Inactive)
  • FlashGot 1.5.5.95 ({19503e42-ca3c-4c27-b1e2-9cdb2170ee34}) (Inactive)
  • Turn Off the Lights 2.2.0.22 (stefanvandamme@stefanvd.net) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: NVIDIA GeForce 6150SE nForce 430
  • adapterDescription2:
  • adapterDeviceID: 0x03d0
  • adapterDeviceID2:
  • adapterDrivers: nvd3dumx,nvd3dum
  • adapterDrivers2:
  • adapterRAM: 256
  • adapterRAM2:
  • adapterVendorID: 0x10de
  • adapterVendorID2:
  • direct2DEnabled: False
  • direct2DEnabledMessage: [u'']
  • directWriteEnabled: False
  • directWriteVersion: 6.2.9200.16571
  • driverDate: 1-31-2013
  • driverDate2:
  • driverVersion: 9.18.13.783
  • driverVersion2:
  • info: {u'AzureContentBackend': u'none', u'AzureCanvasBackend': u'skia', u'AzureFallbackCanvasBackend': u'cairo', u'AzureSkiaAccelerated': 0}
  • isGPU2Active: False
  • numAcceleratedWindows: 0
  • numAcceleratedWindowsMessage: [u'blockedGfxCard']
  • numTotalWindows: 1
  • webglRenderer: Google Inc. -- ANGLE (NVIDIA GeForce 6150SE nForce 430 Direct3D9Ex vs_3_0 ps_3_0)
  • windowLayerManagerRemote: False
  • windowLayerManagerType: Basic

Modified Preferences

  • accessibility.typeaheadfind.flashBar: 0
  • browser.cache.disk.capacity: 0
  • browser.cache.disk.smart_size.enabled: False
  • 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.privatebrowsing.autostart: True
  • browser.search.useDBForOrder: True
  • browser.sessionstore.upgradeBackup.latestBuildID: 20131112160018
  • browser.startup.homepage: http://www.google.com/
  • browser.startup.homepage_override.buildID: 20131112160018
  • browser.startup.homepage_override.mstone: 25.0.1
  • browser.tabs.warnOnClose: False
  • browser.urlbar.autocomplete.enabled: False
  • dom.mozApps.used: True
  • dom.w3c_touch_events.expose: False
  • extensions.lastAppVersion: 25.0.1
  • font.internaluseonly.changed: False
  • gfx.direct3d.checkDX10: False
  • network.cookie.prefsMigrated: True
  • places.database.lastMaintenance: 1385197832
  • places.history.expiration.transient_current_max_pages: 73804
  • plugin.disable_full_page_plugin_for_types: application/pdf
  • plugin.importedState: True
  • privacy.cpd.siteSettings: True
  • privacy.donottrackheader.enabled: True
  • privacy.sanitize.migrateFx3Prefs: True
  • privacy.sanitize.timeSpan: 0
  • security.csp.enable: False
  • security.warn_viewing_mixed: False
  • security.warn_viewing_mixed.show_once: False
  • storage.vacuum.last.index: 1
  • storage.vacuum.last.places.sqlite: 1383795519

Misc

  • User JS: Yes
  • Accessibility: No
iamjayakumars 489 solutions 5951 answers

Chosen Solution

Hello,

Try Firefox Safe Mode to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.

(If you're not using it, switch to the Default theme.)

  • On Windows you can open Firefox 4.0+ in Safe Mode by holding the Shift key when you open the Firefox desktop or Start menu shortcut.
  • On Mac you can open Firefox 4.0+ in Safe Mode by holding the option key while starting Firefox.
  • On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
  • Or open the Help menu and click on the Restart with Add-ons Disabled... menu item while Firefox is running.

FirefoxSafeMode

Once you get the pop-up, just select "'Start in Safe Mode" Safe Mode Fx 15 - Win

If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, and you need to figure out which one. Please follow the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article for that.

To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.

When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.

Thank you.

Hello, '''Try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons. ''(If you're not using it, switch to the Default theme.)'' * On Windows you can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut. * On Mac you can open Firefox 4.0+ in Safe Mode by holding the '''option''' key while starting Firefox. * On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox) * Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running. [[Image:FirefoxSafeMode|width=520]] ''Once you get the pop-up, just select "'Start in Safe Mode"'' [[Image:Safe Mode Fx 15 - Win]] '''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that. ''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.'' ''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.'' Thank you.

Question owner

Thanks! The problem went away on its own before I got this tip. Magic? I dunno', I'm just thrilled it went away!

I will save this tech tip for future reference. Thanks again.

Thanks! The problem went away on its own before I got this tip. Magic? I dunno', I'm just thrilled it went away! I will save this tech tip for future reference. Thanks again.