How to Fix Firefox not Playing Videos - Stellar Data Recovery

How to fix Firefox not playing videos on websites? · Check your Internet connection · Update Mozilla Firefox · Clear Firefox cache and cookies ... ForIndividuals«BackWindowsDataRecoveryRecoverslostordeletedOfficedocuments,emails,presentations&multimediafiles.FreeStandardProfessionalPremiumMacDataRecoveryRecoversdeletedfiles,photos,videosetc.onMac.FreeStandardProfessionalPremiumPhotoRecoveryRecoverphotos,videos,&audiofilesfromallcamerasandstorageonWindows.FreeStandardProfessionalPremiumVideoRepairPhotoRepairiPhoneDataRecoveryForBusiness«BackEmailRepair&ConverterRepairforExchangeConverterforEDBConverterforOSTConverterforNSFConverterforOSTMBOXRepairforOutlookDatabase&FileRepairRepairforMSSQLRepairforAccessRepairforQuickBooksSoftwareRepairforExcelExtractorforWindowsBackupRepairforMySQLDataRecovery&ErasureDataRecoveryProfessionalDataRecoveryTechnicianMacRecoveryforTechnicianVirtualMachineRecoveryFileErasureSoftwareMobileErasureDriveErasureFileEraserSoftwareFileEraserSoftwareforMacToolkitExchangeToolkitOutlookToolkitFileRepairToolkitMSSQLToolkitDataRecoveryToolkitForensicEmailForensicExchangeAuditorLogAnalyzerforMySQLLogAnalyzerforMSSQLStorePartnersServicesOffersSupport VideoRepair6minutereadHowtoFix“Firefoxnotplayingvideos?”UpdatedonJune15th,2021WrittenByNishatPaikerSummary:MozillaFirefoxmayfailtoplayonlinevideos—keepbuffering,notloadvideos,givevideoerrors,etc.Thispostprovidesquickfixesforfirefoxnotplayingvideosonanywebsite,includingYouTube,Facebook,Hulu,etc.MozillaFirefoxisoneofthefastestbrowserswithloadsoffeatures,privacyprotections,andcustomizationoptions.Butoften,therearecomplaintsaboutFirefoxvideoglitches—–VideoskeepbufferinginFirefox–VideosnotloadinginFirefox–Firefoxwon’tloadhtml5videosandsoonYoumayalsoreceiveFirefoxvideoerrormessages,suchas‘anunknownerroroccurred’,‘connectiontoserverlosterror,’‘thevideoisunavailableerror,’‘videofilecannotbeplayed’,andmore.ContentsSowhyFirefoxdoesnotplayvideos?HowtofixFirefoxnotplayingvideosonwebsites?SowhyFirefoxdoesnotplayvideos?Itcouldbeanyreason.Maybeoneofyourbrowseradd-ons,piledupcachedata,orabrowserHardwareAcceleration.Customizingthebrowserbyaddingplugins,themes,anti-virusadd-ons,ortoolbar,etc.,enhancesyourbrowsingexperience.Butoften,theycausethesoftwaretocrashwithcertainwebsites.Thisdon’tletFirefoxaccesssomeaspectsofawebsitesuchasvideos.HowtofixFirefoxnotplayingvideosonwebsites?Onlinevideosareasourceofinformationaswellasentertainment.IfFirefoxdoesn’tplayvideosonYouTube,Facebook,Hulu,LinkedIn,oranotherwebsite,theremustbesomeissuewiththevideoortheplayer.Mostofthetime,theproblemisduetoanyoftheFirefoxfeatures.Soitrequirestodisableandre-enablesomeoftheFirefoxfeaturesasaremedyoftheproblem. TrythebelowmethodstofixFirefoxdon’tplayorstreamvideosproblem:CheckyourInternetconnectionUpdateMozillaFirefoxClearFirefoxcacheandcookiesDisableAdd-onsEnableAutoplayinFirefoxDisablehardwareaccelerationinFirefoxRefreshyourFirefoxMethod1:CheckInternetconnectionPoorinternetconnectionwon’tletyouplayvideosinFirefox.Youronlinevideosmaytaketimetoloadorkeepbuffering.Makesureyouareusingafasterbroadbandconnection.Method2:UpdateMozillaFirefoxBrowserupdatesareknowntoimprovespeedandprotectagainstviruses.Plus,theycanalsofixbugsandsoftwareconflictsonyoursystem.SoifFirefoxisnotplayingvideos,trytotroubleshootbyupdatingFirefox.StepstoupdateFirefox:OpenFirefoxandclickonthemenu(threebars)buttonatthetop-rightcorner.SelectHelp>AboutFirefox.AboutMozillaFirefoxwindowopens.Firefoxautomaticallychecksforupdatesanddownloadsthem.Figure:FirefoxupdatewindowWhenthedownloadfinishes,clickonRestarttoupdateFirefoxandfollowtheon-screeninstructions.Figure:FirefoxtoupdatebuttonMethod3:ClearFirefoxcacheandcookiesCookiesandcachearecreatedwhenyouopenanywebsiteinyourbrowser.Theyhelptoopenthesitesfasteronyournextvisit.Butsometimes,cacheandcookiesmayaccumulate,creatingproblems,likevideonotloadinginFirefox,slowbrowser,etc.Stepstoclearyourcacheandcookies:OpentheFirefoxmenu.SelectOptionsandclickonPrivacyandSecurityontheleft.Figure:Privacy&SecuritybuttonScrolldowntoCookiesandSiteData.ClickonClearData.Figure:ClearcacheandcookiesoptioninFirefoxSelectCookiesandSiteDataandCachedWebContent.Figure:FirefoxClearDataoptionsClickClear. Thiswillremoveloginstatusandsitepreferences.Allwebsitescacheinformation,suchasstoredimages,scripts,etc.,getsremoved.Method4:DisableAdd-onsYoumaybeusingadd-onslikeextensions,themes,orpluginstocustomizeyourMozillaFirefoxbrowser.However,theseadd-onscanpreventwebsitevideosfromloadinginFirefox.TrytofixthevideoissuebydisablingyourFirefoxadd-ons–extensions,themes,andplugins.StepstodisableFirefoxextensions:OpentheFirefoxmenu.SelectAdd-onsfromthelist.ClickonExtensionsontheleft.ToggleoffeachAdd-ontodisable.RestartFirefox.StepstodisableFirefoxthemes:ClickontheFirefoxmenuicon.ClickAdd-ons.SelectThemes.Underenabledthemeslist,disableeachtheme.Note:DonotdisableDefaulttheme.Figure:DisableThemeinFirefoxStepstodisableFirefoxplugins:ClickontheFirefoxmenu.ClickonAdd-onsandselectPluginsontheleft-sidebar.Scrollthroughthelistofplugins.Clickonthe3-dotsandselectNeverActivatefromthedrop-down.Method5:EnableAutoplayinFirefoxBydefault,MozillaFirefoxblockswebsitevideoswithsoundtoplayautomatically.Youwillhavetoenable‘Autoplay’toplayonlinevideosinFirefox.Applyanyofthebelowwaystoenable‘Autoplay’whenvideosnotworkinginFirefox:Way1:AllowAutoplayusingFirefoxOptions.Way2:AllowAutopayfromwebsitesettingsinFirefoxWay1:AllowAutoplayusingFirefoxOptionsOpenFirefoxmenu.SelectOptionsandclickonPrivacyandSecurityintheleft.ScrolldowntoPermissions.FindAutoplayandclickSettings.AcrossDefaultforallwebsites,selectAllowAudioandVideofromthedrop-down.Figure:Autoplaysettingwindow6.Next,clickSaveChanges.ThesettingswillapplytoallthewebsitesyouopenintheFirefoxbrowser.Way2:AllowAutopayfromwebsitesettingsinFirefox:OpenthewebsiteURLintheFirefoxbrowser.Clickonthelockiconintheaddressbar.OpentheSiteInformationdrop-down.UnderPermissions,clickonAutoplaydrop-down.Figure:AllowAutoplayoptionfromthewebsite 5.SelectAllowAudioandVideo.6.RestartyourFirefox.Method6:DisablehardwareaccelerationinFirefoxBrowserhardwareaccelerationenablesFirefoxtomaximizecomputer’shardwareusageforgraphics-intensivetasks,suchasvideoloading.ButsometimesgraphicsprocessorsanddriversmayconflictwithFirefox.Thismaycausetroubleindisplayingvideosonpages.SotryoncedisablinghardwareaccelerationtocheckifitresolvesFirefoxnotplayingvideosproblem.StepstodisableHardwareAccelerationinFirefox:ClickontheFirefoxmenuandselectOptions.SelecttheGeneralpanel.ScrolldowntoPerformanceanduncheckUserecommendedperformancesettings.Figure:HardwareaccelerationoptioninFirefoxUncheckUsehardwareaccelerationwhenavailable.ClicktheFirefoxmenuiconandselectExit.RestartFirefox.Method7:RefreshyourFirefoxIfnoneoftheabovemethodswork,refreshyourbrowser.StepstorefreshFirefox:OpentheFirefoxmenu.ClickHelp>troubleshootinginformation.Figure:RefreshFirefoxbuttonClickRefreshFirefox.NowtrytoopenvideosinMozillaFirefox;theyshouldplay.BONUSTIP:Downloadedvideosonyourdriveturnedoutcorrupt?RepairwithStellarRepairforVideoIfthedownloadedvideossavedonyourdrive,don’tplay,showerror,oraredistorted,theymaybecorrupt.Oftenimproperdownloadortransferofvideoscancorruptvideofiles.GetDIYvideorepairsoftware–StellarRepairforVideo.Itfixesalltypesofvideosmaybecorruptedduetoimproperfiletransfer,virusinfection,corruptstoragedrive,etc.ConclusionAlthoughit’sfrustratingtofindFirefoxnotplayingYouTube,Facebook,orotheronlinevideos.Butnownoneedtofreakoutatthebrowserglitch.Followtheabovemethods.OneofthemissurelygoingtohelpyoufixvideosnotplayingintheFirefoxissue. Hopeyoufoundthisposthelpful.Dosharewithourreaderswhichmethodworkedforyou.Alsoread:FixEmbeddedVideosNotPlayinginGoogleChromeAboutTheAuthorNishatNishatPaikerisanexperttechnicalwriterandeditorwithover8yearsofexperience.ShehasdeepknowledgeaboutdatarecoveryandlovestoexplorenewtechnologyandDIYtools.Nishathaskeeninterestinphotography.Youwilloftenfindhergivingphotographytipsandhacks.BestSellingProductsStellarDataRecoveryProfessionalforWindowsStellarDataRecoveryhastherightWindowsRecoverytoolforallyourdatarecoveryReadMoreStellarDataRecoveryProfessionalforMacStellarDataRecoveryforMacprogramperformssafe.. ReadMoreStellarPhotoRecoveryAcomprehensivephotorecoverysoftwaretorestorephotos,music&videofiles ReadMoreStellarRepairforVideoPowerfulvideorepairtoolforrepairingcorruptordamagedMOVandothervideofiles ReadMoreTableofContentsSowhyFirefoxdoesnotplayvideos?HowtofixFirefoxnotplayingvideosonwebsites?CategoriesSelectCategoryAccessDatabaseActivationAudioRecoveryAudioVideoConverterBackupMacBitRaserCleanmyMacDataBreachDataRecoveryServicesDataRecoverySoftwareDatabaseConverterDatabaseRecoveryDiscountDiskRecoveryEDBtoPSTConverterEmailConverterEmailForensicsEmailRepairEmailToolsEntourageDatabaseEventsExchangeServerFileEraserFileEraserMacFileRecoveryFileRepairFreeFileRecoverySoftwareFreeMacDataRecoveryFreebiesGiveawaysGroupWiseServerHardDriveRecoveryHardDriveWipeHolidayOffersiPhoneDataEraseriPhoneDataRecoveryLearningwithStellarMacdatarecoveryMacDataRecovery(Japanese)MacdatarecoveryonWindowsMacharddriverecoveryMacSoftwareMacUtilitiesMacWorld|iWorld2012MBOXFileMediaToolsMergeMailboxforOutlookMySQLRepairNaturalDisastersNewsNSFtoPSTOffersOffice365OthersOutlookDataFileOutlookDataFileToolkitOutlookForMacOutlookPSTFileOutlookSplitterPasswordRecoveryPhotoRecoveryPhotoRepairQuickBooksQuickBooksFileRepairRaidDataRecoverySecurityStellarDataRecoverySuccessStoryTapeDataRecoveryThirdPartySoftwareToolkitforDataRecoveryToolkitforMSSQLvideorecoveryVideoRepairWDR-ProWindows10Windows8WindowsDataRecovery-StandardWindowsDataRecovery5WindowsDataRecovery6WindowsDataRecovery-ProfessionalWindowsToolsRelatedPostsMacSoftware9WaystoFixiMovieWon’tExportErroronMacRatneshKumarMay9,2022ReadMoreVideoRepairFixGoogleDriveVideoStillProcessingErrorSumonaChatterjeeApril27,2022ReadMoreVideoRepairTwitterVideoNotPlayingonAndroid,iPhone,orLaptopNishatPaikerApril5,2022ReadMoreWeusecookiesonthiswebsite.Byusingthissite,youagreethatwemaystoreandaccesscookiesonyourdeviceReadMoreGotit!