Firefox Community Forum

I've noticed recently that some Unicode characters are not rendering properly on some websites. Specifically the Unicode characters for Mathematical Bold Capitals, though there may be others. I've noticed this issue on Twitch and GitHub. Screenshots for the repository sainnhe/everforest are attached along with the Inspector. Notice the characters do not appear properly on the webpage but are rendered just fine in Inspector. I also attached the screenshot for Unicode Mathematical Bold Capital E.

I am running Firefox version 132.0 on macOS Sequoia 15.0.1. The problem remains in Troubleshoot Mode. The problem does not appear in Chrome or Safari. The problem does not appear on my iPhone or Android tablet.

In posts with similar issues I've seen the suggestion to toggle "Allow pages to choose their own fonts", the issue does not respond to changing this setting (it is on in all the screenshots).

I was wandering if Firefox Desktop will support Web Share API. You can see it's supported from all major browsers and on Firefox Mobile too

Do you plan to include the support in the near or far future?

Thanks for the great job!

The list of previously visited sites in firefox windows seems to have shrunk in some recent update of firefox. Now, when I click the address bar I only get 5 options, the first being search with google and the remaining 4 being previously visited sites. Used to be that list was much longer. Is there a way to customize this, or revert it back to where it contains 10+ items?

Hello,

There has been an upgrade of Firefox ESR to version 128.3 on Debian 12 bookworm.

Before the update, I could play videos, now I can't.

I precise I can play videos on Chromium, or with the video players.

I have libavcodec58, libavcodec-extra59, ffmpeg 5.1.6 packages installed.

There is an error in the console: Media resource xxx.webm could not be decoded. Specified “type” attribute of “video/mp4” is not supported. Load of media resource xxx.mp4 failed.

This command seems to indicate the session is X11 and not Wayland: ``` loginctl show-session 1 -p Type Type=x11 ```

Is it possible to view the contents of two tabs simultaneously? I have been in many situations where it would be very helpful to view two different web pages side-by-side to more easily make comparisons. Opening a new window and viewing them side-by-side is similar but being able to pick two tabs to view in one browser would be a lot faster and easier to control.

I have latest version of firefox on my windows 10 dell inspiron 7560 ... I have been using firefox for about 18 years now

system info - i7 - 8GB RAM, windows 10, one 128 GB SSD and other 512GB SSD

Since yesterday, it has been crashing after every 2-5 minutes; in troubleshooter mode as well...

I ran Windows RAM memory test, it turned out to be okay... I ran a Dell hardware test, it informed me that my fan is not working properly; though I doubt its the reason for my Firefox crashing

Below is one of the crashes in text - can someone help please?

AdapterDeviceID: 0x5916 AdapterDriverVersion: 27.20.100.8854 AdapterSubsysID: 07821028 AdapterVendorID: 0x8086 Add-ons: snaplinks%40snaplinks.mozdev.org:3.1.12,%7B394DCBA4-1F92-4f8e-8EC9-8D2CB90CB69B%7D:6.3.1,%40pagememo:1.15.1resigned1,%7Baf37054b-3ace-46a2-ac59-709e4412bec6%7D:4.2,screenshots%40mozilla.org:39.0.1,webcompat%40mozilla.org:130.2.0,formautofill%40mozilla.org:1.0.1,pictureinpicture%40mozilla.org:1.0.0,bing%40search.mozilla.org:1.7,google%40search.mozilla.org:1.5,wikipedia%40search.mozilla.org:1.4,ddg%40search.mozilla.org:1.5,ebay%40search.mozilla.org:1.5,default-theme%40mozilla.org:1.3,addons-search-detection%40mozilla.com:2.0.0 AvailablePageFile: 8233635840 AvailablePhysicalMemory: 1266659328 AvailableVirtualMemory: 138522270318592 BackgroundTaskMode: 0 BuildID: 20240913135723 CPUMicrocodeVersion: 0xde ContentSandboxCapable: 1 ContentSandboxLevel: 7 ContentSandboxWin32kState: Win32k Lockdown enabled -- default value is true CrashTime: 1727643240 DOMFissionEnabled: 1 DOMIPCEnabled: 1 EMCheckCompatibility: true EventLoopNestingLevel: 1 GPUProcessLaunchCount: 1 GPUProcessStatus: Running GpuSandboxLevel: 1 HeadlessMode: 0 InstallTime: 1726686919 LastStartupWasCrash: 0 LauncherProcessState: 0 ModuleSignatureInfo: {"Avast Software s.r.o.":["aswJsFlt.dll","snxhk.dll","aswhook.dll"],"Microsoft Windows":["CryptoWinRT.dll","devenum.dll","sapi.dll","winmmbase.dll","windows.internal.shell.broker.dll","Windows.Security.Integrity.dll","PCShellCommonProxyStub.dll","ondemandconnroutehelper.dll","TaskFlowDataEngine.dll","linkinfo.dll","ntshrui.dll","explorerframe.dll","wpnapps.dll","dataexchange.dll","twinapi.dll","cdp.dll","cscapi.dll","edputil.dll","winrnr.dll","pnrpnsp.dll","NapiNSP.dll","wscapi.dll","wininet.dll","wsock32.dll","ktmw32.dll","winmm.dll","msimg32.dll","OneCoreCommonProxyStub.dll","comctl32.dll","FWPUCLNT.DLL","directmanipulation.dll","Windows.Globalization.dll","DWrite.dll","urlmon.dll","Windows.UI.Immersive.dll","srvcli.dll","iertutil.dll","BCP47mrm.dll","InputHost.dll","TextInputFramework.dll","Windows.UI.dll","Bcp47Langs.dll","winhttp.dll","OneCoreUAPCommonProxyStub.dll","dbgcore.dll","dhcpcsvc6.DLL","WindowManagementAPI.dll","npmproxy.dll","version.dll","dhcpcsvc.dll","msacm32.dll","rasadhlp.dll","twinapi.appcore.dll","Windows.ApplicationModel.dll","xmllite.dll","taskschd.dll","winnsi.dll","MMDevAPI.dll","AudioSes.dll","d3d11.dll","d2d1.dll","dcomp.dll","avrt.dll","CoreUIComponents.dll","dsreg.dll","nlaapi.dll","CoreMessaging.dll","icm32.dll","msdmo.dll","ColorAdapterClient.dll","mscms.dll","wshbth.dll","WinTypes.dll","policymanager.dll","netprofm.dll","WindowsCodecs.dll","uxtheme.dll","deviceaccess.dll","PortableDeviceTypes.dll","propsys.dll","SensorsNativeApi.V2.dll","SensorsUtilsV2.dll","SensorsApi.dll","rmclient.dll","dwmapi.dll","windows.storage.dll","dbghelp.dll","wtsapi32.dll","kernel.appcore.dll","dxgi.dll","winsta.dll","rsaenh.dll","msvcp110_win.dll","ntmarta.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","sspicli.dll","userenv.dll","profapi.dll","KERNELBASE.dll","win32u.dll","wintrust.dll","gdi32full.dll","bcrypt.dll","cfgmgr32.dll","crypt32.dll","bcryptPrimitives.dll","msvcp_win.dll","ucrtbase.dll","gdi32.dll","shell32.dll","clbcatq.dll","imm32.dll","SHCore.dll","setupapi.dll","sechost.dll","advapi32.dll","kernel32.dll","imagehlp.dll","nsi.dll","msvcrt.dll","rpcrt4.dll","psapi.dll","user32.dll","msctf.dll","ws2_32.dll","oleaut32.dll","combase.dll","ole32.dll","shlwapi.dll","ntdll.dll"],"Microsoft Windows Software Compatibility Publisher":["VCRUNTIME140_1.dll","VCRUNTIME140.dll","msvcp140.dll"],"Mozilla Corporation":["firefox.exe","xul.dll","gkcodecs.dll","nss3.dll","mozglue.dll","osclientcerts.dll","nssckbi.dll","freebl3.dll","softokn3.dll","lgpllibs.dll"]} MozCrashReason: assertion failed: n > 0 && n <= 8 Notes: FP(D00-L1100-W0000100-T00) Has dual GPUs. GPU #2: AdapterVendorID2: 0x10de, AdapterDeviceID2: 0x134d, AdapterSubsysID2: 07821028, AdapterDriverVersion2: 30.0.15.1169DWrite? DWrite+ WR? WR+ ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox QuotaManagerStorageIsNetworkResource: 0 RDDProcessStatus: Running ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 7259 StartupCacheValid: 1 StartupCrash: 0 StartupTime: 1727642490 SubmittedFrom: Client SystemMemoryUsePercentage: 85 TelemetryEnvironment: 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8462282752 TotalVirtualMemory: 140737488224256 UptimeTS: 7502.15923 UtilityProcessStatus: Running Vendor: Mozilla Version: 130.0.1 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.

The bookmarks sidebar disappearing is creating inconvenience and I´m always having to use CNTL-B to recover it, even after I have selected View/Sidebar/Bookmarks which has a tick. Each time I change sites it deletes the tick.

I checked the about:config toobars and I cannot find it, or am I in the wrong place ?

RJ

duplicate of /questions/1466153 thread

I thought I had solved this by adding the website to the "safe" list - I really cannot say how frustrating this is if I am being locked out of even safe sites. - This is a browser issue (I'm not that naive).

There is no real response from Moacilla(Firefox) here apart from throwing the Rulebbok at me and saying "Read!". I can only do so much Tune ups" and shut downs and ensure drives are functional. Please advise on the Browser Cache situation, rspecially as BBC iPlayer is added to the "Safe List" and yet still throws up the 400 Bad Gateway error message - an early reply would be useful.

I have a problem on the aliexpress website. (in other browsers everything works fine) When I open tabs with goods on aliexpress. and start switching between them, then at the moment of switching to another tab, my previous tab itself is updated and opens the main page. And there is no way to even press the “Back” button. The browser seems to reload the page completely. The chatgpt was unable to find a solution. All hope is on you. There are no errors. It's just that the aliexpress page reloads by itself when I switch to any other tab.

My computer died about three days ago, and firefox had three windows open. When I rebooted the computer again, firefox automatically started up, and the flyout panel thing that shows up when you right click on an app claimed that all three windows returned. However, only two of them were actually accessible, and clicking on the app to move between them and the F3 window confirmed this. Clicking on the third window accomplishes nothing, reveals nothing, and just moves the little checkmark around in that flyout panel. Closing the other two windows before restarting firefox does not open a new window because it thinks one is already there, but I cannot in any way see or access it outside of its label in the flyout panel. Even hitting "Show All Windows" just shows the window I am typing this in. What am I supposed to do here?

When visiting a site with a Input=Number field and clicking on it and scrolling nothing happens when it should change the value as if i had pressed up or down arrow.

Restore the new tab button to the tabs bar, as well as the ability to put extension icons on the toolbar! There was no reason to remove these and it's highly inconvenient with these new changes!

My Firefox started crashing a lot recently. Dozens of tab crashes within the span of just a minute or two are not uncommon. Sometimes, the entire browser itself crashes. Usually, the reason given is a vague EXCEPTION_ACCESS_VIOLATION_WRITE or EXCEPTION_ACCESS_VIOLATION_READ. I should note that in my case, the crashes affect most of the browsers I use, but they do not crash nearly as often as firefox does.

I've tried using it without any extensions (clean install), and with hardware acceleration disabled. I've run a RAM test also, which showed no issues. Disk check also indicated no issues. I installed windows 10 and even windows 11 on the secondary hard disk, but the issue persisted. I've also tried forcing my discrete/integrated GPU to be used solely as the display adapter, but the crashes still persisted.

When using firefox on ubuntu, the crashes do not happen, strangely. There was only one instance that I noticed the crashes on ubuntu, and that was when I set my discrete graphics card as the exclusive display adapter, from the BIOS settings.

Anyway, nothing really sticks out as the root cause. Wonder if someone is able to decipher anything from the crash reports below https://crash-stats.mozilla.org/report/index/bp-6927a483-6c22-4830-b057-1413e0241104 https://crash-stats.mozilla.org/report/index/bp-42b9b1f5-5820-4ed9-9c52-30c8e0241104 https://crash-stats.mozilla.org/report/index/bp-0b92e804-00e8-4515-9129-3b5db0241104 https://crash-stats.mozilla.org/report/index/bp-d27cdb0b-3e38-4507-925b-09ce30240914 https://crash-stats.mozilla.org/report/index/bp-fa6b0609-ae19-4a66-a81d-078040240911

Hello👋 I am using firefox developers edition on build 132.0b2 and my UI is not rendering correctly, the themes work but the objects like the bookmarks toolbar and the refresh button and the home button even some of my extensions is not loading and other things also not loading, but fortunately I know the keyboard shortcuts for these functions and they are working just fine but all the buttons are just not there My device is a Dell Latitude E7450 and it has a normal core I5 5300U so it is not an x86 arm based processor I hope that you find a solution ASAP as I am really struggling with my browser like this and btw I really love your work and the products that you give Thanks for doing the hard work! bye

How do I stop it from appearing please? It's the address bar.. field. I don't know what to call it, english is not my native language. I just want it to remain small and static like it always did. Now it becomes a huge field that takes up too much space and blocks my vision and I just want it to disappear.

I wish Firefox would stop changing stuff like this.

I am running an iMac that is about eight years old.This afternoon my Firefox browser was taken over by a "warning" from "MacOS security center" that I should go to THEIR macOS support site to get my system unfrozen. The number they give is 1-877-xxx-xxxx. I cannot get this intruder to go away, even by restarting the computer.