Firefox Support Forum

In Firefox, after a reboot, how can I re open my previouse sessions?

Originally I had quite a lot of open browsers & tabs. Then I needed to do a reboot, and now I've lost those previouse sessions.

Usually I just open firefox, and this opens one browser, and then all of my previous browser, and tab reopen, but this time firefox crashed, and its popup said it needed to restart, but it would re-open my previous browser and tab, but it didnt.

After following the usuall firefox help giudes, it still wouldn't re open my previouse sessions. Now if I ask it to open my previouse sessions, it just opens the recent help giudes, and not anything before the crash.

So is there a backup file of myu missing sessions that I can roll back to?

Hello, I'm a web developer. I'm using the Firefox Developer Edition and currently working on a project that requires caret manipulation. I have this function right here that fetches the caret's client rect: ``` function getCaretRect(): DOMRect | null {

 const sel = window.getSelection()
 if (!sel || sel.rangeCount === 0) return null

 const range = sel.getRangeAt(0)
 const rects = range.getClientRects()
 if (rects.length === 0) return null

 return rects[0]

} ``` Here is where the issue arises. Suppose I have a contenteditable div with two line breaks (no new lines), and the second line is smaller than the first one. If the caret is positioned somewhere that is further than the end of the second line, and I press the down arrow key, then left, for some reason the caret rect I get has all values set to zero, like this: `{ x: 0, y: 0, width: 0, height: 0, top: 0, right: 0, bottom: 0, left: 0 }` I will add an image to explain further.

I don't have this issue on Chromium based browsers, but cross browser support is important for me.

There is one more issue to do with caret manipulation which is how contenteditable divs are handled. On a Chromium based browser, if I have a parent div that's contenteditable, then another div that's not contenteditable (contenteditable="false" explicitly), then two children divs which are both contenteditable (or more), I can navigate through the divs freely using the arrow keys and focus is managed better alongside event handlers. This is not present on Firefox, however.

If this is not the right place to ask for help then please guide me where is more suitable.

Hi,

I need to take part in a course that is delivered via moodle and that employs SCORM videos.

After some modules I am experiencing an issue where firefox does not load them anymore. When you try to load a module a spinner appears and stays there indefintely.

Initially, trying to reload the module could eventually unblock it. Now this is not possible anymore. Disabling the enhanced protection does not change the situation.

The modules work just fine with chromium.

Having firefox being a stopper for online learning resources is a real issue. Any help will be appreciated.

gente, o que aconteceu com o firefox (normal, beta e nightly) que não funciona mais áudio. já tentei de tudo para reconfigurar, baseado em tutoriais na web, porém não se consegue mais ouvir áudio nos firefox.

Lately YouTube playing videos have been playing super fast or skipping straight to the end. I mean, they are horribly fast.

Things to know:

• I am posting here because I can't determine whether browsers may have settings unique to them that I need to change. This also happens in Chrome, but not Edge.
• I was recently forced to upgrade to Windows 11 - I can't say this issue happened exactly at that time, but fairly recently after the upgrade. I am running Windows 11 Pro.
• This does NOT happen when playing in a private browser window, either Firefox or Chrome.
• Having the Mozilla VPN on or off has no effect.
• I am sure the playback speed is set to normal. I have tried changing the playback speed to anything but normal and then back to normal and the current video runs correctly UNTIL I play the next video.
• This does not happen with Vimeo.
• It does not happen in FF for Android.

Any questions, thoughts, or advice would be appreciated.

Is there a way to set a separate theme for the private browsing option? I like being able to visually distinguish between the normal browser and the private one, but enabling a theme seems to set the same visuals for both.

If separate themes are not a thing, perhaps they could be added in a later update?

Thanks for all your time and effort.

Ive tried everything under the Sun to try to get rid of that Annoying ( Sign in with Google) out of my computer but nothing works ?? Is there a solution ?? I cannot open most of my Sites with it there !! Anyone Please HELP !!

For the last several weeks (can't give an exact date, but it's been more than just a couple weeks, less than a couple months), both my husband and I have had issues loading videos in FF. We both have the latest version of FF. I went thru "Fix common audio and video issues" and did all those things, as well as trying to load the videos in troubleshooting mode. Nothing has helped (tho now that i cleared all the cache, i'm gonna have to log back into all those websites :( ). Nothing else is problematic. Our internet connection is fine. In fact, my husband has resorted to using MS browser to watch videos--they load fine in that browser. I have no other idea what to do. Searching your database for "youtube videos load slow" only resulted in a couple hits with no resolution. Hopefully this isn't the third. thanks

I need a Backup from my Account because all my Passwords and Bookmarks are not there anymore. They was saved in my Account it work't allways well till yesterday !

Hi,

ist the famous and great Mozilla FireFox Developer team aware of the issue and is working on it?

I am happey to describe in more detail if required. thx

I've removed firefox and reinstalled but for some reason my IOS continuity microphone and my Loopback (Rogue amoeba) virtual devices no longer show in firefox but they show up in firefox beta. Is there a setting that masks these devices off from the production branch?

After uninstall and reinstall my Firefox i can't restore my bookmark. I used (CTRL+shift+b) and restore my file "JSONLZ4". But i have an error as "Unable to process the backup file". I read your forum and test many things but nothing. I also used the https://www.jeffersonscher.com/ffu/bookbackreader.html,but it does not work? It prompts:failed JSON parsing: SyntaxError: Unexpected end of JSON input. I really need my bookmarks! How can I restore them?

Hi,

my firefox does not load any webpage no matter what Firefox profile I am using (created a new one for tests). I have a Win10 pc with Avast and Comodo installed, the system with the mentioned software and multiple different Firefox profiles was running since several years without problems.

A month ago I had the same issue with Firefox 126, which I guess was caused by a windows update, where I had trouble getting it installed. But after this (I had to increase the system reserved partition) Firefox was running without any problmes like before ...

Now no pages kan be load and always the crash monitor pops up.

AdapterDeviceID: 0x5916 AdapterDriverVersion: 30.0.100.9865 AdapterSubsysID: 224e17aa AdapterVendorID: 0x8086 Add-ons: formautofill%40mozilla.org:1.0.1,pictureinpicture%40mozilla.org:1.0.0,webcompat%40mozilla.org:125.1.0,default-theme%40mozilla.org:1.3,addons-search-detection%40mozilla.com:2.0.0,google%40search.mozilla.org:1.4,leo_ende_de%40search.mozilla.org:1.1,ecosia%40search.mozilla.org:1.2,wikipedia%40search.mozilla.org:1.3,bing%40search.mozilla.org:1.6,ddg%40search.mozilla.org:1.4,ebay%40search.mozilla.org:1.4 AvailablePageFile: 28210671616 AvailablePhysicalMemory: 6727372800 AvailableVirtualMemory: 138531126534144 BackgroundTaskMode: 0 BuildID: 20240606181944 CPUMicrocodeVersion: 0xf4 ContentSandboxCapable: 1 ContentSandboxLevel: 6 ContentSandboxWin32kState: Win32k Lockdown enabled -- default value is true CrashTime: 1719121467 DOMFissionEnabled: 1 DOMIPCEnabled: 1 EMCheckCompatibility: true GPUProcessLaunchCount: 1 GPUProcessStatus: Running GpuSandboxLevel: 1 HeadlessMode: 0 InstallTime: 1718671975 LastInteractionDuration: 76 LastStartupWasCrash: 0 LauncherProcessState: 0 ModuleSignatureInfo: {"Avast Software s.r.o.":["aswJsFlt.dll","snxhk.dll","aswhook.dll","AavmRpch.dll","aswCmnIS.dll","aswCmnOS.dll","dll_loader.dll","aswCmnBS.dll"],"Comodo Security Solutions, Inc.":["guard64.dll"],"Microsoft Windows":["CryptoWinRT.dll","d3d9.dll","windows.internal.shell.broker.dll","TaskFlowDataEngine.dll","linkinfo.dll","ntshrui.dll","thumbcache.dll","wpnapps.dll","Windows.StateRepositoryPS.dll","cdp.dll","explorerframe.dll","dataexchange.dll","edputil.dll","oleacc.dll","tiptsf.dll","GdiPlus.dll","cscapi.dll","twinapi.dll","ondemandconnroutehelper.dll","MSAudDecMFT.dll","mfperfhelper.dll","msmpeg2vdec.dll","winrnr.dll","pnrpnsp.dll","NapiNSP.dll","wscapi.dll","winmm.dll","wininet.dll","wsock32.dll","windows.staterepositorycore.dll","msdmo.dll","RTWorkQ.dll","mfplat.dll","ktmw32.dll","FWPUCLNT.DLL","OneCoreCommonProxyStub.dll","Windows.Security.Integrity.dll","comctl32.dll","Windows.ApplicationModel.dll","npmproxy.dll","directmanipulation.dll","Windows.Globalization.dll","DWrite.dll","srvcli.dll","urlmon.dll","Windows.UI.Immersive.dll","iertutil.dll","BCP47mrm.dll","InputHost.dll","dbgcore.dll","TextInputFramework.dll","Windows.UI.dll","MrmCoreR.dll","Bcp47Langs.dll","dhcpcsvc6.DLL","dhcpcsvc.dll","DXCore.dll","AppXDeploymentClient.dll","winnsi.dll","MP3DMOD.DLL","OneCoreUAPCommonProxyStub.dll","rasadhlp.dll","UIAnimation.dll","MMDevAPI.dll","AudioSes.dll","twinapi.appcore.dll","WindowManagementAPI.dll","ninput.dll","avrt.dll","ColorAdapterClient.dll","mscms.dll","xmllite.dll","nlaapi.dll","wshbth.dll","wtsapi32.dll","dsreg.dll","d3dcompiler_47.dll","d3d11.dll","WinTypes.dll","dcomp.dll","CoreUIComponents.dll","CoreMessaging.dll","policymanager.dll","netprofm.dll","apphelp.dll","dbghelp.dll","WindowsCodecs.dll","uxtheme.dll","resourcepolicyclient.dll","dwmapi.dll","rmclient.dll","windows.storage.dll","winhttp.dll","propsys.dll","kernel.appcore.dll","dxgi.dll","fwbase.dll","firewallapi.dll","profext.dll","rsaenh.dll","msvcp110_win.dll","ntmarta.dll","IPHLPAPI.DLL","netutils.dll","dnsapi.dll","mswsock.dll","cryptsp.dll","cryptbase.dll","wldp.dll","ntasn1.dll","ncrypt.dll","winsta.dll","msasn1.dll","fltLib.dll","version.dll","devobj.dll","umpdc.dll","powrprof.dll","sspicli.dll","userenv.dll","profapi.dll","bcrypt.dll","ucrtbase.dll","wintrust.dll","crypt32.dll","KERNELBASE.dll","cfgmgr32.dll","bcryptPrimitives.dll","msvcp_win.dll","win32u.dll","gdi32full.dll","user32.dll","imagehlp.dll","oleaut32.dll","ole32.dll","combase.dll","clbcatq.dll","nsi.dll","sechost.dll","shlwapi.dll","SHCore.dll","kernel32.dll","msvcrt.dll","gdi32.dll","rpcrt4.dll","advapi32.dll","ws2_32.dll","psapi.dll","shell32.dll","msctf.dll","setupapi.dll","imm32.dll","ntdll.dll"],"Microsoft Windows Software Compatibility Publisher":["msvcp140.dll","VCRUNTIME140.dll","VCRUNTIME140_1.dll","msvcp140.dll","VCRUNTIME140.dll","VCRUNTIME140_1.dll"],"Mozilla Corporation":["firefox.exe","xul.dll","gkcodecs.dll","libGLESv2.dll","nss3.dll","freebl3.dll","osclientcerts.dll","mozglue.dll","nssckbi.dll","softokn3.dll","lgpllibs.dll","libEGL.dll"]} MozCrashReason: Shutdown hanging at step AppShutdownNetTeardown. Something is blocking the main-thread. Notes: FP(D00-L1000-W0000100-T00) DWrite? DWrite+ WR? WR+ WebGL? EGL? EGL- GL Context? GL Context- GL Context+ WebGL+ ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox QuotaManagerStorageIsNetworkResource: 0 ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 1269 ShutdownProgress: profile-change-net-teardown ShutdownReason: AppClose StartupCacheValid: 1 StartupCrash: 0 StartupTime: 1719121150 SubmittedFrom: Client SystemMemoryUsePercentage: 60

Thank you so much. Best John

I have been having consistent issues with Youtube when played on Firefox. Opening the "Stats for Nerds", I see that I have decent connection speed. However, I get a burst of network activity, and then it stops. Therefore, i can't watch the video. Refreshing Youtube does not help at all.

Trying on other browsers, I do not have issue. While I sometimes get low network activity, most often than not, I can play Youtube videos fine.

I have done the following:

• Confirmed that I'm running the latest Firefox version (127.0.0)
• Cleared Firefox cache
• Confirmed having issue (sometimes worse as I get no network activity even on refresh) on Firefox Troubleshoot mode

Hi,

I'm switching from Edge and have a frustrating issue.

In Edge I am very used to having separate behaviour for links with left and middle click.

i.e. from Gmail, if I left click a link it opens in a new tab and switches to the tab, if I middle click a link it opens in a new tab but stays on the current tab

In Firefox both seem to be controlled by the single setting.

I have looked in about:config and tried changing a few flags but cannot seem to find a combination that works how I want it.

Can anyone help?

This is a real dealbreaker for me and I will switch back if there's no solution :(

TIA

Hello, I use Duck Duck Go as a default search engine, with Google and others as alternatives. Since I switched my compter, Firefox resets the default engine back to ebay, which cannot be deleted in the list and also shows up in the address bar. Could you please tell me how to get rid of it? Thank you very much!