Firefox-Hilfeforum

My Firefox tab keeps crashing on a particular website. Whenever I go to twitch.tv, the site begins to load and then I get the "Gah. Your tab just crashed." screen. I'm only getting this crash on twitch.tv pages, and this issue just started on May 31, 2024. When I try to open a twitch.tv page in Private Mode, the page loads just fine. I've never had a Firefox tab crash prior to this.

I've tried turning off all of my Firefox extensions, but that didn't solve the issue. I also tried opening Firefox in Troubleshooting Mode, but I still got the tab crash. I'm using the latest version of Firefox as of today's date.

I am trying to add an mp4 video to my website using the following code:

<video width="320" height="240" controls>
  <source src="images/###.mp4" type="video/mp4">
</video>

where ### is the name of the video file. I get the following error message:

"No video with supported format or MIME type found."

In the console the following is displayed:

"Media resource http://127.0.0.1:5502/images/###.mp4 could not be decoded. video.html All candidate resources failed to load. Media load paused. video.html Media resource http://127.0.0.1:5502/images/###.mp4 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_METADATA_ERR (0x806e0006)"

Runs just fine in Chrome and I have no pop-up blockers installed. Autoplay is set to be allowed for all websites.

Windows 11 version 23H2. Firefox version: 126.0 (64-bit)

When using amazon the login and page load times are excessively long. More often than not I can open MSN, load amazon, login, and find what I'm looking for before Firefox has completed signing me in or searching for an item. This is not a once in a while problem, it happens every time with amazon, some times worse than other times. Ive deleted and reloaded Firefox, cleared all history and tried as many other things that I could find online to try, none of which helped.

If I open a second tab on the screen it says the connection has crashed and keeps doing it if you try again. If you reset it resets Firefox including the other tab.

This pops up every few hours. Sometimes it pops up invisible but steals focus from the main window. How can this be disabled?

I tried all methods that have been mentioned everywhere on the Internet, including policy.json, Group Policy on Windows, etc. Nothing disables this nagging yet.

When ever I play a game, the video I have playing (yes I need that stimulation) all of a sudden just freezes I can hear the audio but the video just freezes unless I click back onto the browser

I'm a long time FF user, the developer edition is my preferred browser. It suddenly started crashing, a complete removal and new install did not help.I posted a help question a couple of weeks ago but no workable solution surfaced unfortunately. I assume the problem is still the same.

ps. I'm currently using the standard FF verison and it runs smooth as ever....

The most recent crash report:

AbortMessage: xpcom_runtime_abort(###!!! ABORT: file resource://gre/modules/JSONFile.sys.mjs:126) Accessibility: Active AccessibilityClient: unchecky_bg.exe|1.2.0.0 AccessibilityInProcClient: 0x400 AdapterDeviceID: 0x2486 AdapterDriverVersion: 31.0.15.5168 AdapterSubsysID: 39711028 AdapterVendorID: 0x10de Add-ons: %40contain-facebook:2.3.11,bookmarksorganizer%40agenedia.com:4.1.1,firefox%40ghostery.com:8.12.11,jid1-KKzOGWgsW3Ao4Q%40jetpack:3.5.0,jid1-MnnxcxisBPnSXQ%40jetpack:2024.5.27,jid1-ZAdIEUB7XOzOJw%40jetpack:2024.4.26,nortonsafeweb%40symantec.com:3.22.0.2,uBlock0%40raymondhill.net:1.57.2,%7B17c7f098-dbb8-4f15-ad39-8b578da80f7e%7D:0.9.7.1,%7B9AA46F4F-4DC7-4c06-97AF-5035170634FE%7D:16.83,dont-track-me-google%40robwu.nl:4.28,firefox-extension%40deepl.com:1.12.3,sponsorBlocker%40ajay.app:5.6,CookieAutoDelete%40kennydo.com:3.8.2,firefox-translations-addon%40mozilla.org:1.3.4buildid20230720.091143,formautofill%40mozilla.org:1.0.1,pictureinpicture%40mozilla.org:1.0.0,webcompat-reporter%40mozilla.org:2.1.0,webcompat%40mozilla.org:125.1.0,default-theme%40mozilla.org:1.3,google%40search.mozilla.org:1.4,wikipedia%40search.mozilla.org:1.3,bing%40search.mozilla.org:1.6,ddg%40search.mozilla.org:1.4,addons-search-detection%40mozilla.com:2.0.0,ebay%40search.mozilla.org:1.4 AsyncShutdownTimeout: {"phase":"IOUtils: waiting for profileBeforeChange IO to complete","conditions":[{"name":"JSON store: writing data for 'targeting.snapshot'","state":{"sanitizedBasename":"targeting.snapshot"},"filename":"resource://gre/modules/JSONFile.sys.mjs","lineNumber":126,"stack":["resource://gre/modules/JSONFile.sys.mjs:JSONFile:126","resource://gre/modules/BackgroundUpdate.sys.mjs:scheduleFirefoxMessagingSystemTargetingSnapshotting:766","resource:///modules/BrowserGlue.sys.mjs:task:3039","resource:///modules/BrowserGlue.sys.mjs:_scheduleStartupIdleTasks/<:3177"]}]} AvailablePageFile: 12386869248 AvailablePhysicalMemory: 6176493568 AvailableVirtualMemory: 138531053895680 BackgroundTaskMode: 0 BuildID: 20240529091551 CPUMicrocodeVersion: 0x5d ContentSandboxCapable: 1 ContentSandboxLevel: 6 ContentSandboxWin32kState: Win32k Lockdown enabled -- default value is true CrashTime: 1717081387 DOMFissionEnabled: 1 DOMIPCEnabled: 1 EMCheckCompatibility: true GPUProcessLaunchCount: 1 GPUProcessStatus: Running GpuSandboxLevel: 1 HeadlessMode: 0 InstallTime: 1717081240 LastInteractionDuration: 56 LastStartupWasCrash: 0 LauncherProcessState: 0 ModuleSignatureInfo: {"Microsoft Windows":["wscapi.dll","windows.internal.shell.broker.dll","CryptoWinRT.dll","Windows.Security.Integrity.dll","PCShellCommonProxyStub.dll","explorerframe.dll","dataexchange.dll","wpnapps.dll","linkinfo.dll","twinapi.dll","wsock32.dll","Windows.ApplicationModel.dll","ktmw32.dll","nlansp_c.dll","winrnr.dll","pnrpnsp.dll","NapiNSP.dll","cryptngc.dll","OneCoreCommonProxyStub.dll","dbgcore.dll","webauthn.dll","directmanipulation.dll","wininet.dll","textinputframework.dll","ondemandconnroutehelper.dll","OneCoreUAPCommonProxyStub.dll","AudioSes.dll","Windows.Globalization.dll","CoreUIComponents.dll","avrt.dll","directxdatabasehelper.dll","mscms.dll","oleacc.dll","iertutil.dll","srvcli.dll","urlmon.dll","twinapi.appcore.dll","Windows.UI.Immersive.dll","Windows.UI.dll","Bcp47Langs.dll","winmm.dll","msimg32.dll","windows.staterepositorycore.dll","Windows.System.Launcher.dll","MMDevAPI.dll","npmproxy.dll","FWPUCLNT.DLL","wshbth.dll","dhcpcsvc.dll","winhttp.dll","dhcpcsvc6.DLL","version.dll","rasadhlp.dll","netprofm.dll","msvcp110_win.dll","taskschd.dll","propsys.dll","DWrite.dll","dcomp.dll","CoreMessaging.dll","uxtheme.dll","dxgi.dll","dwmapi.dll","winnsi.dll","DXCore.dll","dbghelp.dll","WinTypes.dll","windows.storage.dll","slc.dll","winsta.dll","netutils.dll","IPHLPAPI.DLL","dnsapi.dll","umpdc.dll","powrprof.dll","wtsapi32.dll","WTDSENSOR.dll","rsaenh.dll","kernel.appcore.dll","ntmarta.dll","sspicli.dll","mswsock.dll","cryptsp.dll","cryptbase.dll","msasn1.dll","ntasn1.dll","ncrypt.dll","devobj.dll","cfgmgr32.dll","sxs.dll","profapi.dll","KERNELBASE.dll","bcryptPrimitives.dll","gdi32full.dll","bcrypt.dll","ucrtbase.dll","win32u.dll","wintrust.dll","msvcp_win.dll","crypt32.dll","msctf.dll","ws2_32.dll","imagehlp.dll","msvcrt.dll","advapi32.dll","rpcrt4.dll","shlwapi.dll","ole32.dll","oleaut32.dll","nsi.dll","clbcatq.dll","SHCore.dll","gdi32.dll","kernel32.dll","imm32.dll","combase.dll","shell32.dll","setupapi.dll","psapi.dll","sechost.dll","user32.dll","ntdll.dll"],"Microsoft Windows Software Compatibility Publisher":["msvcp140.dll","VCRUNTIME140.dll","msvcp140.dll","vcruntime140.dll","vcruntime140_1.dll","VCRUNTIME140_1.dll"],"Mozilla Corporation":["firefox.exe","xul.dll","gkcodecs.dll","nss3.dll","mozglue.dll","freebl3.dll","lgpllibs.dll","osclientcerts.dll","nssckbi.dll","softokn3.dll"]} MozCrashReason: [Parent 13304, Main Thread] ###!!! ABORT: file resource://gre/modules/JSONFile.sys.mjs:126 Notes: FP(D00-L1000-W0000100-T00) Has dual GPUs. GPU #2: AdapterVendorID2: 0x8086, AdapterDeviceID2: 0x4c8a, AdapterSubsysID2: 39711028, AdapterDriverVersion2: 31.0.101.4953DWrite? DWrite+ WR? WR+ xpcom_runtime_abort(###!!! ABORT: file resource://gre/modules/JSONFile.sys.mjs:126) ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox QuotaManagerStorageIsNetworkResource: 0 RDDProcessStatus: Running ReleaseChannel: aurora SafeMode: 0 ShutdownProgress: profile-before-change ShutdownReason: AppClose StartupCacheValid: 0 StartupCrash: 0 StartupTime: 1717081270 SubmittedFrom: Client SystemMemoryUsePercentage: 81 TelemetryEnvironment: {"build":{"applicationId":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","applicationName":"Firefox","architecture":"x86-64","buildId":"20240529091551","version":"127.0","vendor":"Mozilla","displayVersion":"127.0b8","platformVersion":"127.0","xpcomAbi":"x86_64-msvc","updaterAvailable":true},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":32369,"virtualMaxMB":134217728,"cpu":{"isWindowsSMode":false,"count":16,"cores":8,"vendor":"GenuineIntel","name":"11th Gen 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MSAFD Tcpip [TCP/IPv6] : 2 : 23 : 1 : 6 : 0x20066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
MSAFD Tcpip [UDP/IPv6] : 2 : 23 : 2 : 17 : 0x20609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
MSAFD Tcpip [RAW/IPv6] : 2 : 23 : 3 : 0 : 0x20609 : 0xc : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
MSAFD Tcpip [TCP/IP] : 2 : 2 : 1 : 6 : 0x20066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192 
MSAFD Tcpip [UDP/IP] : 2 : 2 : 2 : 17 : 0x20609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192 
MSAFD Tcpip [RAW/IP] : 2 : 2 : 3 : 0 : 0x20609 : 0xc : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192 
RSVP TCPv6 Service Provider : 2 : 23 : 1 : 6 : 0x22066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP TCP Service Provider : 2 : 2 : 1 : 6 : 0x22066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP UDPv6 Service Provider : 2 : 23 : 2 : 17 : 0x22609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP UDP Service Provider : 2 : 2 : 2 : 17 : 0x22609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
AF_UNIX : 2 : 1 : 1 : 0 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : a00943d9-9c2e-4633-9b59-0057a3160994 
MSAFD L2CAP [Bluetooth] : 2 : 32 : 1 : 256 : 0x20006 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9fc48064-7298-43e4-b7bd-181f2089792a 
MSAFD RfComm [Bluetooth] : 2 : 32 : 1 : 3 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9fc48064-7298-43e4-b7bd-181f2089792a

XPCOMSpinEventLoopStack: default: AsyncShutdown Spinner for profile-before-change useragent_locale: en-US This report also contains technical information about the state of the application when it crashed.bold text

Every time I attempt to download a file today, no matter what it is or where it's from, it pops up saying that the download failed immediately. I can download through Edge or other browsers, just not Firefox (or any Firefox offshoots like LibreWolf). Not sure what's causing it, I've run a whole gambit of troubleshooting options, including:

• Checking my connection
• Checking my drive's space (plenty)
• Changing the download path
• Reset the download folder in about:config
• Rebooting my computer
• Clearing my downloads
• Trying a new profile
• Run a MalwareBytes scan
• Closed MalwareBytes and turned off my firewall
• Ensured OneDrive is disabled
• Refreshed Firefox
• Did a clean install

Nothing works. The only thing I found that gives me any kind of clue is this error message in my about:support: ""NotAllowedError: Could not create unique file in `C:\Users\[my name redacted]\AppData\Local\Temp' (NS_ERROR_FILE_ACCESS_DENIED"" It seems like Firefox is trying to write to Temp and can't get the permissions, but I'm not sure why that would be or how to fix it. I have tried googling my butt off, but I'm not finding anything helpful - I may just be blind.

If anyone has any idea how to fix this, it'd be much appreciated!

i updated my browser and now everything is gone, my extentions wont open as its in "safe mode", none of my browsing history is saved anymore. should I delete firefox and reinstall it?

Dear Firefox support community

Greetings from southern Germany, near Lake Constance :-)

I have issues since a few months that Firefox loads website only when I actively click on the app and put in foreground. Then the tabs start loading. Why is that?

After startup of Windows 10, I usually run a little batch script of mine starting various applications such as Outlook, Notepad++ etc, including Firefox along with my favourite websites, just like this:

start "" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Firefox.lnk" https://de.wikipedia.org https://www.google.de [and more...]

So Firefox loads and opens all the tabs in the background, while other apps such as Outlook or Notepad++ come in the foreground. I read mails etc. before I decide to check e.g. Wikipedia. So it might take 5 minutes after Firefox got opened before I actively put it in the foreground. THEN I see no websites got loaded, and THEN Firefox starts to load the websites, which then takes the normal amount of time of a few seconds.

I wonder why Firefox does not load all my requested websites directly after start in the background.

An annoying side effect is, when still in Outlook and clicking on a website link in an email, it won't open in Firefox, most likely due to that reason that Firefox still waits for all the other websites to load. I need to put it into foreground, wait for the loading process to complete, and then go back to the email and click on the link again.

Any ideas would be greatly appreciated!

Many thanks in advance for your assistance & Best regards Volker

I have installed firefox in my laptop for years. after latest update, firefox runs just fine only for the 1st time, then after closing the app / restarting the laptop, firefox keep giving error (attached) I have tried to refresh, run troubleshoot mode, uninstall and reinstall again at one point I was able to recreate the issue only after reinstalling firefox 126.0.1 portable version and then syncing to the profile ( run ok for 1st time, then it broke down after closing it) The problem also seems repeatable using firefox 115 protable Now, I tried to reinstall the portable version from scratch, it keeps hitting same error from 1st run

I have also double check the firewall and antivirus to make its not blocking All other browsers works just fine

After update to 126.0.1 I cant access two of the four windows that are open. They are still listed under the Window toolbar option but clicking on them reveals nothing, as if hidden except they are not in the Mac toolbar. Not sure if this is a new feature or glitch, any help would be great, the two windows I can't currently access contain alot of tabs I need.

Bonjour, Hello,

I contact you because, even without an adblocker, Youtube is very slow with Firefox navigator. I don't understand why and I don't have this problem with Google Chrome ? Fews years earlier, I never had this problem with slow Youtube when using Firefox Navigator. I don't know if the problem comes from Youtube or Mozilla and I contacted both of them.

Thank you.

Bonjour,

Je vous contacte car, même sans bloqueur de publicité, Youtube est très lent avec le navigateur Firefox. Je ne comprends pas pourquoi et je n'ai pas ce problème avec Google Chrome ? Quelques années plus tôt, je n'avais jamais eu ce problème de lenteur avec Youtube lorsque j'utilisais Firefox Navigator. Je ne sais pas si le problème vient de Youtube ou de Mozilla et je les ai contactés tous les deux.

When I open poges now I see often "Firefox darf diese eingebettete Seite nicht öffnen" maybe similar to "Firefox can't open the imbedded page"

I can't see my own music tracks posted on x.com! That's a kind of fraud! What are you doing? At SAP I have to use Edge on Linux already cause you are doing a very bad job! WTF is going on? Are you doing anything or just breaking things?

As the title says, it is very slow with Ublock Origin. I have refreshed Firefox and without Ublock it obviously works but I would like to keep the extension because it is the only one that works with Youtube Ads right now.

I have used Firefox exclusively for years. I use Hushmail but recently I am missing the respond to email bar that was always there. I have to use Edge and Chrome (but not a fan of) and Hushmail works like it used to. Something about Firefox must be the difference. Can you help me?

There is (IMHO) some missing functionality / unwanted feature or call it what you like (bug?).

History -> Manage History

select e.g. Last 7 days, right click on Name and select at least two attributes (you can choose from: Tags, Location,Most Recent Visit, Added and Last Modified)

Select the first entry of the list, all displayed fields are selected/highlighted.

Copy (either with the menu or with Ctrl-C) and paste it in your favourite text editor.

Why is only the URL copied? Other fields were also highlighted. Why are they not included?

This is WYSINWYG (what you see is not what you get).

It is possible to export bookmarks as an html file, so why is this not possible with history?

OK, it is possible to query the sqlite3 database directly to get some history info but it's a bit cumbersome.

To do so,

  copy the sqlite (places.sqlite) database to some safe place then open the database (with 'sqlite3 places.sqlite')
  get the history info you are interested in with a sqlite query,
  e.g. select title,visit_count,site_name,url,description,last_visit_date from moz_places where url like '%support%';

But there is no simple (AFAIK) way to convert 'last_visit_date' (an integer) to something human readable.

So either include the whole selection when something is copied (WYSIWYG) or provide export history as an html file.

Any suggestions?

TIA

S. Claes

I have 750mb Claro fiber internet, directly on the cable. I updated Firefox. My internet dropped to 300/340mb. I complained to Claro. They tested by connecting another computer to the cable. It gave 800mb. I installed Chrome. Speed ​​was 900mb. What to do in Firefox to regain speed?

I refreshed Firefox last night. Now, Facebook doesn't display images--it displays about half; the rest are blank boxes. Facebook closes while I'm typing. A game I've been playing freezes and I have to close it and re-open it. Telus email seems to be fine. My Google results are in massive type and I can't adjust it.