Firefox Support Forum

My internet has 750mb of bandwidth. Updated 64bit Firefox can only provide 320mb. I installed Chrome and the internet went to 800mb. What could be slowing down internet speed in Firefox? I restored Firefox, restarting everything. I did the same with Windows 10. I restored it to an earlier date. It didn't improve anything. What to do ?

Version 126.0 (64 bit) Mozilla Firefox for Linux Mint mint-001 - 1.0

I use a wireless keyboard and mouse via a USB connector. History - I have had to reboot to clear the mouse interface error when it occurs for many months. I've had a open issue in the linux mint forums as I thought it may be a driver issue. Things worked tolerable until 5-29-2024 as my wireless mouse has been deactivated. I opened a second window(tab) in a new window and my wireless mouse permanently no longer works. It was quite startling. The wireless keyboard is fine. A wired USB mouse works. My HP laptop mousepad works. However, once the error occurs mouse clicks are no longer responded to and the active area remains the partial window where the mouse was last active. Currently the mouse cursor does not respond to movement inputs from the wireless mouse, so seriously worse.

Have the mouse settings or driver have been tampered with?

Hi, I would like to remove the hints that appear below the sign-in box for my email account (yahoo). I want to be able to type in my email address each time without being prompted by a hint address (windows 11/firefox browser). Please help me eliminate/delete the addresses that auto-populate the hints email addresses. Thank you.

ps: please note that I do not have an in-depth understanding of computers or computer development language (mostly computer illiterate). I cannot write or change code.

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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Report sponsors on videos you wa","name":"SponsorBlock for YouTube - Skip Sponsorships","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":19659,"signedState":2,"signedTypes":"[2,0]","quarantineIgnoredByApp":true,"quarantineIgnoredByUser":false},"firefox@ghostery.com":{"version":"8.12.11","scope":1,"type":"extension","updateDay":19873,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Ghostery is a powerful privacy extension. 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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.

I always had one version of Firefox installed. I regularly update the software via Help >> About Still, after every update, I am getting multiple versions of Firefox listed at [Settings/Installed Apps] and [Control Panel/Uninstall or remove apps] on my Win11 23H2 22631.3593 (screenshot attached).

In order to get rid of outdated items from the list, I need to reinstall Firefox completely, but the same thing is happening with every update of Firefox.

Is there a way to resolve this and why is this happening?

Hello! I've been noticing for several versions of Firefox that the response times reported in the “Network” tab of the developer console are wrong. In Chrome it shows the true value, which are a few ms, while in Firefox they show that it takes several seconds!!!! I attach the images of the problem.

Is it a bug, or a configuration problem itself? Thanks in advance

When I start FireFox most times the browser comes up then stops and restarts with a pink color on the web address line. I have tried making changes in settings but I can not find a setting for this. If I restart Firefox right after this happens, I cn search or browse without the Pink address line. Why is this happening. It would be nice if FireFox technicians would respond to help questions instead of sending questions to a forem...

Firefox spawn too many child processess, with cause the browser to freeze.

Proposed solution:

Reduce to absolute minimum the spawn child processess. The value should be set according to the device performance and additionally show allow the user to set manually the limits.

Example: 1 (maximal 3) child process per tab/window

Please help me to understand why I keep getting the 'Gah! Your tab just crashed' message. This only started a couple of weeks ago, but is extremely annoying and makes me doubt the integrity of Firefox. The problem can be circumvented (at least for a while) by closing and re-opening Firefox, but I'd prefer not to have to keep doing this.

I restarted my Windows 11 laptop and got error message about user profile. Restarted again and looks like it was corrupted so deleted my my user profile and Firefox config and bookmarks are gone!

Still have all the files just a new user profile and the old one is gone?

Any help how to get Firefox bookmarks back would be much appreciated

for example: discord.com => discord.com/app

Is there any better way than adding a bookmark for it?

Hi,

So I got a new ultra-ultra wide 32:9 monitor and I noticed when I have firefox maximized on my new monitor and switch focus to a different window all of the text on tabs on the full screened firefox would go very blurry. If I had the same firefox windows full sized on my 16:9 secondary monitor this didn't happen. I then tried having the windows not maximized on the new monitor and it did not do this behavior when it was occupying what I would say was 1/3 of the screen width but if I stretched the screen too far it would again go back to this blurry behavior. So it seems like the text for the tabs behaves differently after the firefox window is stretched to a certain width. On the non-stretched firefox windows the letters simply get darker which I find to look better than the blurring. I added a screenshot that shows the differences I am seeing, the firefox window on the bottom screen shows the blurring, if you look at what would be the left middle side of the screenshot, while the top and bottom middle firefox windows show what it seems like it should look like.

Thanks, Dan

tl:dr Here's the CSS to put in userChrome.css file. This is the "hides everything" option. See toward the end of this post for others.

1. navigator-toolbox:has(#PersonalToolbar[collapsed="true"]) {

 visibility: collapse;

}

+++

I was looking for a way to hide the nav bar and ran across this older forum topic (https://support.mozilla.org/en-US/questions/1288181).

The solution shown here seems to be non-functional these days (early 2024), but it gets us in the right direction, so below is the code for us to look at.

1. main-window[chromehidden*="toolbar"] #nav-bar {

 visibility: collapse;

}

This is CSS, meant to be copied into a text document, itself placed in a folder called "chrome" that you'll need to create in your browser's active profile folder. Per step 6 in the instructions (https://www.userchrome.org/how-create-userchrome-css.html) linked by @jscher2000 in the above-linked forum topic, you'll also need to set toolkit.legacyUserProfileCustomizations.stylesheets to "true" in about:config. If you don't know what about:config is, this is a good example to get started, but I'm not going to explain it here.

This CSS code selects the object with ID #main-window, with an HTML attribute "chromehidden" equal to "toolbar", and sets its CSS property "visibility" to "collapse". Apparently Mozila have changed the way they implement toolbar hiding, as this no longer works — this chromehidden attribute is nowhere to be found in the HTML that drives the Firefox interface, not sure if that's the place to look for it, but I think so. Anyway, we need to dig around in this interface HTML ourselves to see what changes when hiding the bookmarks toolbar, so we can adapt a new method to what's going on in the browser now.

To do so, we open a window within a window (chrome://browser/content/browser.xhtml) and run the inspector via Web Developer Tools. Comparing the HTML we see here with the bookmarks toolbar in each state (I used BBEdit to compare the texts), we see that the object with ID #PersonalToolbar experiences a change in its "collapsed" attribute when we hide/show the bookmarks toolbar. So in our CSS code, we shift our strategy to update the "collapse" CSS property for #navigator-toolbox whenever it contains a #PersonalToolbar object with its own "collapsed" attribute set to "true", which occurs whenever we hide the bookmarks toolbar. Somewhat surprisingly, this approach of updating the CSS property seems to auto-reset on its own when the "collapsed" attribute is set back to "false", which occurs when we show the bookmarks toolbar again. In other words, it simply toggles with the visibility setting of the bookmarks toolbar, and we don't have to write any further code.

If you're interested in hiding some other UI element when hiding the bookmarks toolbar, you can modify this code to do stuff like that (but to go beyond the below examples you'll need to suss out the object IDs, CSS properties, and HTML attributes — and maybe more, depending on what you're trying to do — on your own).

But for convenience, here's an example that hides just the tabs:

1. navigator-toolbox:has(#PersonalToolbar[collapsed="true"]) #titlebar {

 visibility: collapse;

}

Here's one that hides just the URL bar:

1. navigator-toolbox:has(#PersonalToolbar[collapsed="true"]) #nav-bar {

 visibility: collapse;

}

Since those are the only other two things in the #navigator-toolbox to be hidden, I suppose that means we now have all options on the table (at least the way I have the browser set up). Enjoy!

I have been using Firefox as my preferred browser on Windows 10 Home and Pro systems for a considerable time and have recommended it to many Windows and Android users.

Windows 10 Home ver 10.0.19045 has recently been unable to access many well-known websites due to

Secure Connection Failed - An error occurred during a connection to <website's https url> PR_END_OF_FILE_ERROR.

There are multiple reports of this problem from 2023 up into 2024 in Mozilla support and across the web, but no solutions. Curiously all of the problem reports mention Firefox not any other browser. Suggestions to try multiple fixes, but none have resolved the problem.

One posting on Mozilla Support marked RESOLVED says the problem mysteriously went away for that user. Lots of people still seem to be having this problem, so how about a fix.

Sent from Brave browser,

I cannot download any files or any adons through firefox. I have tried every single troubleshooting method in the "What to do if you can't download or save files" article I have restarted my computer, I have refreshed firefox, I have reinstalled firefox TWICE, I have turned off my firewall and tried downloading a file, I have changed the wifi im connected to, I can download files on internet explorer just fine, I have tried a new profile, I have scanned my device for viruses (theres none), I have no idea what the troubleshooting mode is supposed to do because I cannot download files in that either. I currently have no ad-ons installed because of the refresh I dont know what else to do and why is my firefox doing this, it started yesterday.

It was working fine and now the past few days I can no longer login to my Fastmail.com account other than from my Windows 7 pc

So no one including Firefox can email me

Concerning "Dismissed Suggestions"> Restore Suggestions. The "Restore" button (circled in image) is greyed out & will not do anything when clicked. This behaves same in normal as well as private browsing windows. Thank you