Firefox Support Forum

A couple users at our site intermittently receive a SSL_ERROR_BAD_MAC_ALERT error when navigating to Google in Firefox. This happens in Version 99.0.1 (64-bit) on Windows 10 computers. When the issue occurs, users can navigate to other websites without issues. Navigating to Google in a different browser works no problem. Restarting the browser will resolve the issue. Clearing cookies and site data has no effect. Users can also refresh the page after some time and the issue will go away.

Any idea as to why this is happening?

Reviewed "Sheribee" earlier issue which apparently involved a VPN. I do not have a VPN but have tried several times in the past week to access IRS refund status site without success. I can get into irs.gov, but am unsuccessful in accessing the refund status site after entering required input data. The issue has occurred only this past week.

I'm unaware of IRS issues causing this problem.

Have not had this issue on any other sites; and I have successful retrieved data in prior years.

I am not saving any sign on protocols with the irs or any other sites.

Running Windows 10. Thanks for any help. BTW I did get refund information using the telephone, but I want to ensure there's not a hidden conflict of some sort with FireFox. Thanks for any help.

Hi guys,

I don't know when and how exactly this thing was added to my firefox behind my back, I don't like it, I don't like Baidu Pan either but I have to use it.

I checked the extensions and add-ons, nothing suspicious was found.

Can you please help me remove it?

Recently I have noticed that where there are drop down lists on websites I visit the drop down function no longer works properly if I am using the Firefox browser. If I click on the arrow in a drop down list box the list briefly appears then disappears almost immediately making impossible to select an option from that list. I don't have this problem if I use any other browser like Safari and the drop down list function used to work on Firefox, so presumably this is a bug unless there is something in preferences that needs changing. I am using v88.0.1 on mac OS Sierra 10.12.6. Any help wud be appreciated

my pc had friend so when i got a new one i lost all of my firefox data, how can i get all of it back so i was forced to start all over, i lost all my, bookmarks, tabs, history and saved passwords

I have a new business website http://affordable-tutors.com/about-our-tutors and I tried to put in my video https://youtu.be/EQxd_cowXPg

but it gives me the following error. Website will not allow Firefox to display the page if another site has embedded it

What can I do?

Yes, I own all the rights for that video.

I am getting a certification issue when trying to visit 2 specific sites which are some of the most visited sites in the web: https://www.google.com and https://www.youtube.com

The error it shows when trying to visit these 2 pages, is SEC_ERROR_UNKNOWN_ISSUER.

I have tried to troubleshoot it and follow the solutions recommended at: https://support.mozilla.org/en-US/kb/error-codes-secure-websites#w_the-error-occurs-on-multiple-secure-sites

however none of the solutions described in this guide worked to solve my problem.

In that guide, one of the suggested solutions is to scan my system for any malware. I used the following: Windows Defender Maleware Bytes AntiMalware Karpersky TDSSkiller however the results are all clean.

In the guide, it suggested that I check the clock as well. The system clock however is synchronized.

Last, I have resetted Firefox Profile but this didnt fix the issue either.

I shall note that the issue appeared yesterday and so far nothing helped fixing it. Not even the system restarts.

The issue about visiting these two sites, is limited only to Firefox.

I can access https://www.google.com and https://www.youtube.com without problems using Google Chrome and the Opera Browser.

Also, Google Mail and Google Translate work fine on Firefox. These two sites can be accessed with Firefox without causing any SEC_ERROR_UNKNOWN_ISSUER errors.

Ever since I started using Firefox which was months ago, I've been getting this "Hmm. We're having trouble finding that site" page multiple times a day when opening links to various websites. Refreshing the page makes it load correctly. I've tried troubleshooting this in the past but didn't spend too much effort, but enough is enough. Things I have tried:

• Disabling all extensions
• Disabling hardware acceleration
• I am using the default theme so there's nothing to disable there
• Clearing the cache
• Checking my internet connection (I'm connected and everything else works)
• Flushing my DNS
• Resetting Windows, which included reinstalling Firefox (I did this to fix something else, but still)
• Disabling IPv6 and DNS prefetching
• I am not using a Proxy

I feel like I've tried everything. What else can I do?

Greetings. I can't open most sites I usually visit (even google.com) via my Firefox 98.0a1. This happens since today. All error codes are SEC_ERROR_LIBRARY_FAILURE.

Tried to:

• Disable DNS-over-HTTPS.
• Disable HTTP/3.
• Disable proxy (never had it enabled anyway).
• Disable sending info to Firefox developers.
• Change settings of DNS-over-HTTPS.
• Restart the browser (after each action).

Nothing helps me... But I still can visit some websites, but most common resources are not working for me. Please help me because I can't use Microsoft Edge without getting mentally ill. :/

Windows 10 - Lenovo Thinkpad X1 Carbon This fall after an update attempt, Firefox started trying to update every time it was started. Deleted Update files in Program Data. FF would restart normally one time. Update data files were always replaced and the update on every startup continued - over and over and over. Tried refreshing FF- same thing. Uninstalled FF this AM and tried to reinstall when I get the following error:

XULRunner Error: Platform version "94.0.2" is not compatible with minVersion >= 94.0.1 maxVersion <= 94.0.1

No FF - HELP!

Firefox Browser uprated to 92.0 today. Previously whilst browsing Ad's were showing; today I have no Ad's displayed but have not enabled an Ad Blocker on Firefox. A site I use extensively cannot now be properly viewed; I get a message to turn off Ad Blocker. I have set Enhanced Tracking Protection to 'Off' but am still unable to obtain full functionality, I am using standard Firefox Privacy settings otherwise. I am able to browse the site properly using MS Edge. I have deliberately refrained from using any AD Blocking on my part so as to ensure the site in question can be properly viewed. The only Firefox extension being used is Kaspersky Protection; I get the turn off Ad Blocker message both when Kaspersky Protection is on or off.

Firefox tabs crash repeatedly for a particular email website that I am using. Specifically, the tab crashes when I click on an link to open an email and see the email contents. The tab will not crash every single time, just occasionally (i.e. sometimes I am able to read an email without the tab crashing, other times not). I do not think that the timing of the crashing has anything to do with the email contents (e.g. length, format). I also do not think that the tab crashing issue is happening for any other websites. The crashing started recently, sometime late December.

I installed the latest version of Firefox, and I cleared the web cache, but nothing has changed.

Any suggestions?

google.com and google related websites doesn't load at all. For example, gmail slowly loads, but loading icon never disappears, loading icon is always shown and then often it shows 'reconnecting' message. This works OK in Chrome.

Steps to reproduce: 1. Open Firefox without VPN - all loads well. 2. Enable VPN - stops loading. If I then disable VPN - it starts loading again.

If I restart Firefox it starts working OK, but after a while stops working again.

I use Kaltura to record lectures and post them to my course at the U of Utah on Canvas. This semester, Firefox will not allow me to open "my media" where the Kaltura recordings are posted on Canvas. I get the following message: It seems your browser is blocking 3rd party session cookies which are required for the Kaltura application. To resolve this issue, please update your settings to allow 3rd party cookies.

I copied the Kaltura web address 670542.kaf.kaltura.com that I can see in Chrome and pasted it into a Chrome browser and it goes to my recordings in Canvas when I use Chrome. The same site doesn't work in Firefox. How do I unblock Kaltura third party sessions? Thank you.

Bob McKnight U of Utah Instructor

I needed to have Windows 10 wiped and reinstalled from my laptop, and the guy who did it cloned my files to save everything. I saw instructions on another post on how to find the bookmarks file under Profile, but it didn't do anything after confirming that it would wipe out all current bookmarks. What am I doing wrong?

I have a home website that was written using php well over 10 years ago. Except for family updates, it has changed little and displayed correctly using firefox and other browsers. Firefox is my preferred browser. A couple of months ago, it stopped displaying correctly in firefox but continues to display correctly w/o issues in Edge, and other browsers.

I note it displays in a basic form in firefox, links to other pages and content are shown and operable, but not displayed (correctly) as it does in Edge and others. I am on the latest version of Win Pro 10.

I posted the problem the end of August and received a number of suggestions. I went through the steps suggested (using troubleshoot amongst other suggestions) and none of the suggestions resolved the issue. My suspicion is that something in a relatively recent update of firefox has issues with my php based code. I do not use a "web tool" but write the source myself. I started writing websites with html decades ago and got the bug to use php years back.

If anyone has the interest (or curiosity) to look at the website in firefox and edge and my source code and see if they see the issue I would be glad provide the link to my website.

I was using Firefox, had one window open...browser was moving slowly so closed it. When I went to reopen-even in safe mode-it loads windows I had open and then suddenly crashes...I cannot refresh it as I have a lot of custom settings and bookmarks...this is the crash report I keep getting, can anyone help me please?

AdapterDeviceID: 0x1f08 AdapterDriverVersion: 27.21.14.6137 AdapterSubsysID: 37591028 AdapterVendorID: 0x10de AvailablePageFile: 82962862080 AvailablePhysicalMemory: 19456344064 AvailableVirtualMemory: 138524369985536 BuildID: 20210927210923 CPUMicrocodeVersion: 0xea ContentSandboxCapable: 1 ContentSandboxLevel: 6 ContentSandboxWin32kState: Win32k Lockdown disabled -- Preference not set CrashTime: 1635919426 DOMIPCEnabled: 1 GraphicsCriticalError: |[0][GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt (t=85.93) InstallTime: 1633592264 JSOutOfMemory: Reported LauncherProcessState: 0 ModuleSignatureInfo: {"Microsoft Corporation":["VCRUNTIME140.dll","msvcp140.dll","VCRUNTIME140_1.dll"],"Microsoft Windows":["usp10.dll","wscapi.dll","directmanipulation.dll","TextShaping.dll","Windows.Globalization.dll","wsock32.dll","twinapi.dll","DWrite.dll","ondemandconnroutehelper.dll","InputHost.dll","BCP47mrm.dll","Windows.UI.dll","dataexchange.dll","Bcp47Langs.dll","wininet.dll","wshbth.dll","AudioSes.dll","ColorAdapterClient.dll","mscms.dll","WindowManagementAPI.dll","textinputframework.dll","twinapi.appcore.dll","msi.dll","dbgcore.dll","dbghelp.dll","msimg32.dll","winrnr.dll","pnrpnsp.dll","NapiNSP.dll","iertutil.dll","urlmon.dll","webauthn.dll","avrt.dll","srvcli.dll","winmm.dll","OneCoreUAPCommonProxyStub.dll","FWPUCLNT.DLL","winhttp.dll","MMDevAPI.dll","propsys.dll","rasadhlp.dll","winnsi.dll","dhcpcsvc.dll","npmproxy.dll","dhcpcsvc6.DLL","version.dll","wtsapi32.dll","netprofm.dll","nlaapi.dll","WinTypes.dll","d3d11.dll","dcomp.dll","CoreUIComponents.dll","CoreMessaging.dll","uxtheme.dll","dwmapi.dll","kernel.appcore.dll","windows.storage.dll","dxgi.dll","winsta.dll","ntmarta.dll","rsaenh.dll","umpdc.dll","IPHLPAPI.DLL","dnsapi.dll","netutils.dll","powrprof.dll","mswsock.dll","cryptsp.dll","CRYPTBASE.DLL","wldp.dll","ntasn1.dll","ncrypt.dll","msasn1.dll","devobj.dll","userenv.dll","sspicli.dll","profapi.dll","bcrypt.dll","cfgmgr32.dll","gdi32full.dll","wintrust.dll","crypt32.dll","ucrtbase.dll","bcryptPrimitives.dll","msvcp_win.dll","KERNELBASE.dll","win32u.dll","shlwapi.dll","advapi32.dll","combase.dll","nsi.dll","msvcrt.dll","psapi.dll","SHCore.dll","kernel32.dll","msctf.dll","oleaut32.dll","imm32.dll","setupapi.dll","ole32.dll","user32.dll","shell32.dll","ws2_32.dll","gdi32.dll","clbcatq.dll","sechost.dll","rpcrt4.dll","imagehlp.dll","ntdll.dll"],"Mozilla Corporation":["firefox.exe","xul.dll","nss3.dll","freebl3.dll","nssckbi.dll","osclientcerts.dll","softokn3.dll","mozglue.dll","lgpllibs.dll"]} MozCrashReason: Failed to load critical module "resource://gre/modules/WebNavigation.jsm" Notes: Has dual GPUs. GPU #2: AdapterVendorID2: 0x8086, AdapterDeviceID2: 0x3e98, AdapterSubsysID2: 37591028, AdapterDriverVersion2: 27.20.100.9664FP(D00-L1000-W00001000-T000) DWrite? DWrite+ WR? WR+ ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SafeMode: 1 SecondsSinceLastCrash: 398 StartupCrash: 0 StartupTime: 1635919379 SystemMemoryUsePercentage: 43 TelemetryEnvironment: {"build":{"applicationId":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","applicationName":"Firefox","architecture":"x86-64","buildId":"20210927210923","version":"93.0","vendor":"Mozilla","displayVersion":"93.0","platformVersion":"93.0","xpcomAbi":"x86_64-msvc","updaterAvailable":true},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":32573,"virtualMaxMB":134217728,"cpu":{"extensions":["hasMMX","hasSSE","hasSSE2","hasSSE3","hasSSSE3","hasSSE4_1","hasSSE4_2","hasAVX","hasAVX2","hasAES"]},"os":{"name":"Windows_NT","version":"10.0","locale":"en-US","servicePackMajor":0,"servicePackMinor":0,"windowsBuildNumber":19043,"windowsUBR":1288},"hdd":{"profile":{"model":null,"revision":null,"type":null},"binary":{"model":null,"revision":null,"type":null},"system":{"model":null,"revision":null,"type":null}},"gfx":{"D2DEnabled":false,"DWriteEnabled":true,"ContentBackend":"Skia","Headless":false,"EmbeddedInFirefoxReality":false,"adapters":[{"description":"NVIDIA GeForce RTX 2060","vendorID":"0x10de","deviceID":"0x1f08","subsysID":"37591028","RAM":6144,"driver":"C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdd.inf_amd64_0a539bf579a84773\\nvldumdx.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdd.inf_amd64_0a539bf579a84773\\nvldumdx.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdd.inf_amd64_0a539bf579a84773\\nvldumdx.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdd.inf_amd64_0a539bf579a84773\\nvldumdx.dll C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdd.inf_amd64_0a539bf579a84773\\nvldumd.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdd.inf_amd64_0a539bf579a84773\\nvldumd.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdd.inf_amd64_0a539bf579a84773\\nvldumd.dll,C:\\WINDOWS\\System32\\DriverStore\\FileRepository\\nvdd.inf_amd64_0a539bf579a84773\\nvldumd.dll","driverVendor":null,"driverVersion":"27.21.14.6137","driverDate":"1-21-2021","GPUActive":true},{"description":"Intel(R) UHD Graphics 630","vendorID":"0x8086","deviceID":"0x3e98","subsysID":"08591028","RAM":0,"driver":"igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32","driverVendor":null,"driverVersion":"27.20.100.9664","driverDate":"6-1-2021","GPUActive":false}],"monitors":[{"screenWidth":2560,"screenHeight":1440,"refreshRate":59,"pseudoDisplay":false},{"screenWidth":1920,"screenHeight":1080,"refreshRate":59,"pseudoDisplay":false}],"features":{"compositor":"none","hwCompositing":{"status":"blocked:FEATURE_FAILURE_COMP_SAFEMODE"},"gpuProcess":{"status":"blocked:FEATURE_FAILURE_SAFE_MODE"},"wrQualified":{"status":"available"},"webrender":{"status":"unavailable-in-safe-mode"},"wrCompositor":{"status":"unavailable:FEATURE_FAILURE_DCOMP_NOT_ANGLE"},"wrSoftware":{"status":"available"},"openglCompositing":{"status":"unused"},"omtp":{"status":"unused"},"d3d11":{"status":"unavailable:FEATURE_FAILURE_D3D11_NEED_HWCOMP"},"d2d":{"status":"unavailable:FEATURE_FAILURE_D2D_D3D11_COMP","version":"1.1"}}},"appleModelId":null,"hasWinPackageId":false,"sec":{"antivirus":null,"antispyware":null,"firewall":null}},"settings":{"blocklistEnabled":true,"e10sEnabled":true,"e10sMultiProcesses":8,"fissionEnabled":false,"telemetryEnabled":false,"locale":"en-US","intl":{},"update":{"channel":"release","enabled":true},"userPrefs":{"browser.search.region":"US","browser.search.widget.inNavBar":false,"browser.startup.page":3,"browser.urlbar.suggest.quicksuggest":false,"browser.urlbar.suggest.quicksuggest.sponsored":false,"extensions.formautofill.creditCards.used":3,"widget.content.allow-gtk-dark-theme":false,"widget.content.gtk-high-contrast.enabled":true},"sandbox":{"effectiveContentProcessLevel":6,"contentWin32kLockdownState":4},"launcherProcessState":0,"addonCompatibilityCheckEnabled":true,"isDefaultBrowser":null},"profile":{}} ThreadIdNameMapping: 19188:"IPC I/O Parent",13336:"Timer",19200:"Link Monitor #1",19184:"Socket Thread",5796:"Permission",7716:"JS Watchdog",4504:"Cache2 I/O",2168:"Cookie",3088:"TaskController Thread #0",5404:"TaskController Thread #1",3028:"TaskController Thread #2",2812:"TaskController Thread #3",2248:"TaskController Thread #5",2260:"TaskController Thread #6",2808:"TaskController Thread #7",2244:"TaskController Thread #4",13280:"Worker Launcher",17440:"WindowsVsyncThread",5812:"Renderer",14148:"WRWorker#7",6228:"WRWorker#2",6580:"WRWorker#4",17568:"WRWorker#3",16376:"WRWorker#1",17896:"WRWorker#0",9128:"WRWorkerLP#0",20316:"WRWorker#5",17888:"WRWorker#6",10812:"WRWorkerLP#1",17900:"WRWorkerLP#2",17908:"WRWorkerLP#3",8324:"WRWorkerLP#4",14844:"WRWorkerLP#5",4840:"WRWorkerLP#6",18944:"WRWorkerLP#7",13048:"WinCompositor",13784:"Compositor",4916:"ImageIO",7344:"IPDL Background",10672:"QuotaManager IO",2556:"DOM Worker",2596:"IndexedDB #1",13388:"StreamTrans #13",7140:"StreamTrans #15",15148:"StreamTrans #16",2792:"StreamTrans #17",10504:"StyleThread#0",10792:"StyleThread#1",2564:"StyleThread#2",10612:"StyleThread#3",10340:"StyleThread#4",17572:"StyleThread#5",8240:"ImageBridgeChld",5424:"BgIOThreadPool #1",18548:"TRR Background",2636:"Untrusted Modules",6308:"DOM Worker",6128:"IndexedDB #2",6324:"StreamTrans #18",18012:"SwComposite",16816:"WRSceneBuilder#2",19804:"WRRenderBackend#2",10508:"WRSceneBuilderLP#2",5388:"IPC Launch",17600:"GMPThread",16624:"ProcessHangMon",9644:"BackgroundThreadPool #2",16472:"ProxyResolution",7620:"DNS Resolver #1",12932:"DNS Resolver #2",11160:"HTML5 Parser",8136:"SwComposite",20468:"WRSceneBuilder#3",14720:"WRSceneBuilderLP#3",3124:"WRRenderBackend#3",4488:"SwComposite",13012:"WRSceneBuilder#4",6548:"WRSceneBuilderLP#4",13016:"WRRenderBackend#4",120:"SwComposite",13272:"WRSceneBuilder#5",8900:"WRSceneBuilderLP#5",17040:"WRRenderBackend#5",16392:"SwComposite",20324:"WRSceneBuilder#6",14380:"WRSceneBuilderLP#6",14456:"WRRenderBackend#6",16604:"DNS Resolver #3",15036:"DNS Resolver #4",8404:"DNS Resolver #5",16428:"DNS Resolver #6",16984:"DNS Resolver #7",15128:"DNS Resolver #8",15228:"SSL Cert #1",11396:"SSL Cert #2",2732:"SSL Cert #3",19292:"SSL Cert #4",13468:"StreamTrans #19",4588:"StreamTrans #20", Throttleable: 1 TotalPageFile: 100727177216 TotalPhysicalMemory: 34155184128 TotalVirtualMemory: 140737488224256 URL: about:blank UptimeTS: 463.12 Vendor: Mozilla Version: 93.0 Winsock_LSP: 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 
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 
AF_UNIX : 2 : 1 : 1 : 0 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : a00943d9-9c2e-4633-9b59-0057a3160994 
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 
Hyper-V RAW : 2 : 34 : 1 : 1 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 1234191b-4bf7-4ca7-86e0-dfd7c32b5445 
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

useragent_locale: en-US

This report also contains technical information about the state of the application when it crashed.