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I have set four custom URLs to open each time I use my main Firefox profile - this works well. (I have several different profiles I use for different roles and sets of logins).

I frequently open new windows to hold a set of associated tasks.

If I specifically open a link into a new window, the new window only has that one tab - all good.

However, if I just open a new window (Ctrl-N), Firefox always opens four new duplicate tabs for my custom URLs.

Is there a way to limit custom URLs to the first window opened in a profile or to open custom URLs only if they are not already open in at least one window?

Please enable the ability to use the "Dark Reader" add-on on this site or let us change it in the settings. Horrible experience in light mode. On the added image you can see that the "Dark Reader" add-on is enabled.

Hi, Recently purchased new laptop with Win 11. I was having trouble downloading anything. Always indicated failure.

I checked some of the responses here for that problem. One of them said to not accept HTTPS only. When I checked my settings, it WAS already set to Don't enable HTTPS-Only Mode. I then set the HTTPS-Only mode to Only in private windows. That setting now allows downloads. Why doesn't it allow downloads when I don't accept HTTPS only?

I attached a screenshot of the difficulty because a community member suggested attach a screenshot. I attached a screenshot and hit reply. It's "do not reply" --so where do I send my screenshot?

Task Manager detail line can be expanded to show multiple open tabs, and I can sort display by CPU but that doesn't help me identify WHICH SPECIFIC tab is using high CPU. Are there any tools to help me quickly identify (and perhaps End) such high CPU tabs/processes? Thanks!

I have Firefox Sync enabled in my Firefox browser on a few computers. When I logged in to Firefox Sync initially, it did sync-up my new computer with all of the saved bookmarks and history. I am not sure if any of my logins were saved). When I go to websites and login, I am prompted with the dialog to save my credentials, and I say ok, save. But the logins are not remembered. And in my about:logins page shows "no logins found". I don't care about retrieving any old logins, I just want to be able to save new ones and get the default behavior of saving logins working again.

Hi,

I was a former IT person for decades and used Firefox because I love it. But lately, it isn't usable for me. Seemingly happened out of nowhere within the past few weeks.

I tried all the troubleshooting steps in the guides on your support forum, but nothing worked. So I tried the following:

1. Uninstalled Firefox using Windows Uninstaller 2. Deleted every single Mozilla folder from within the user profile to the program files folders, local roaming folders, etc. - EVERYTHING. 3. Went into the Windows Registry and also deleted Mozilla folders within the local machine and current user folders. 4. Rebooted computer 5. Went to Getfirefox.com and reinstalled Firefox. 6. Logged into a brand spanking new Firefox installation

Still SLOW as molasses. Frustrating. I can't work. It is literally 4x slower than any other browser now. I use Firefox for 90% of my web stuff, the other browsers 10% of the time for testing. But as it goes now, I cannot use Firefox anymore after decades of using it.

Anything else I can try? Maybe I missed something when I scrubbed it and reinstalled? Why suddenly is it this slow? Any ideas?

I will try next to log into a different Windows profile I guess and see if that improves it. Maybe my Windows profile is jacked up, although, I thought removing all Mozilla folders from within my Windows profile would be enough, so I am not so sure that will fix it. I will try though.

Any help you can provide would be much appreciated.

Thanks,

Mark

Firefox Android just crashed when opening a bunch of bookmarks and then again every time I wanted to report a crash. I hope someone here can forward this to whoever usually receives the crash reports.

1cb54f1f-11f5-4fa7-9d97-b4bf58d29ac2 java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference at java.lang.String.valueOf(String.java:2924) at java.lang.StringBuilder.append(StringBuilder.java:132) at java.lang.Throwable.printEnclosedStackTrace(Throwable.java:709) at java.lang.Throwable.printStackTrace(Throwable.java:674) at java.lang.Throwable.printStackTrace(Throwable.java:735) at mozilla.components.support.base.ext.ThrowableKt.getStacktraceAsString$default(Throwable.kt:19) at mozilla.components.lib.crash.service.MozillaSocorroService.sendCrashData(MozillaSocorroService.kt:607) at mozilla.components.lib.crash.service.MozillaSocorroService.sendReport$lib_crash_release(MozillaSocorroService.kt:285) at mozilla.components.lib.crash.service.MozillaSocorroService.report(MozillaSocorroService.kt:5) at mozilla.components.lib.crash.CrashReporter$submitReport$2.invokeSuspend(CrashReporter.kt:70) at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:9) at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:112) at kotlinx.coroutines.internal.LimitedDispatcher$Worker.run(LimitedDispatcher.kt:4) at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:3) at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:96) Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}@6aec4f8, Dispatchers.IO]

The original bookmarks crash was this:

300e77b6-00e5-458d-ae84-d1202c866a1b java.lang.NullPointerException

* New Sentry Instance: https://sentry.io/organizations/mozilla/issues/?project=6375561&query=9fd75a9f565c460b91e4977064d87e83

java.lang.NullPointerException at org.mozilla.fenix.library.bookmarks.BookmarkFragment.refreshBookmarks(BookmarkFragment.kt:103) at org.mozilla.fenix.library.bookmarks.BookmarkFragment$refreshBookmarks$1.invokeSuspend(BookmarkFragment.kt:14) at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:9) at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:112) at android.os.Handler.handleCallback(Handler.java:883) at android.os.Handler.dispatchMessage(Handler.java:100) at android.os.Looper.loop(Looper.java:214) at android.app.ActivityThread.main(ActivityThread.java:7400) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:491) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:935) Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}@26f4bf6, Dispatchers.Main]

My Firefox Desktop browser is showing the mobile versions of some websites.

In another thread, it is suggested to clear cookies to fix this which I did and it does fix it first but it comes back to mobile version again.

I have browsed those websites on Microfot Edge and it displays them as normal with no issues.

Screenshots attahced for websites, hepsiburada.com and temu.com Strangely, both are shopping websites.

Many Thanks in advance.

I can no longer access the website www.att.com. I receive the following error message. I've deleted history cache and cookies but still can't access it.

Access Denied You don't have permission to access "http://www.att.com/" on this server.

Reference #18.14ad3c17.1692143272.3762eaa6

Any suggestions? It works fine via Microsoft Edge

My Firefox is having some problems relating to audio.

If I open a YouTube video, the image will play but there's no sound, on Twitter also, and so on. On YouTube Music the player won't even start, giving the error "An error occurred. Please try again later." I noticed that the stereo icon that shows up in the tab, which allow you to mute the tab, won't show up when I'm playing a video on YouTube, Twitter, Vimeo, and so on.

Only Firefox has no sound, it's not muted in the Volume Mixer, neither in the app volume settings in Windows. I've followed everything suggested here here and here.

I think the problems may have started after I reinstalled my graphic card driver, but I'm not sure since I don't use this computer very often. I have a Windows 10 and my graphic card is a Nvidia GT 630, and the driver version is 474.44.

my Other Bookmarks is no longer in my bookmarks toolbar. I have two laptops and the other one is perfect. I tried sycing many times, I did a restore (which I shouldn't have) but nothing makes them reappear. While I can access these bookmarks from the menu bar, I want to see it in my bookmarks toolbar. It did not fall off into my customized overflow either. Whaaaatttt is going on? I need to put it back asap without spending hours trying to make this simple thing happen. Also, why did it disappear? And why won't a sync bring it back?

https://connect.mozilla.org/t5/user/ssoregistrationpage?dest_url=https:%2F%2Fconnect.mozilla.org%2F

link from a message to me in my email. Can't sign in . Keeps asking me to register and rejects my registered name. For the last couple years, intermittently.

This question was asked, but the answer is outdated. This option no longer exists.

https://support.mozilla.org/en-US/questions/1322516#question-reply

I am using version 116.0 for Arch Linux.

Hi,

I am using the Firefox Multi-Account Containers addon with Firefox 116.0.2 (on apple silicon). I use the containers to isolate sessions from different websites. I have a container for my Instagram session. However, when I open a private browsing window and go to instagram, I find that I am already logged in. I thought private browsing windows were completely new and blank.

How is it possible that my instagram session is available in private browsing?

Thanks in advance

Hi, I've been using Firefox for decades and been saving passwords in it without any second thoughts, thinking they were fully secure.

Today I had to install a Yandex Browser for my work for the first time in my life (on a new clean Windows 10). It also asked to "make changes on my device", and I rejected it. What happened next absolutely terrified me. It immediately grabbed all the tabs, the sessions and, most importantly, the years worth of passwords from my Firefox. Does it mean that they just lie there unprotected, and any random piece of code even without the administrative privileges can just take them? I'm pretty sure I didn't click anything related to legitimate data sync.

I am trying to my account to authy but after I scan the QR and type the code, FireFox say wrong codes. Authy worked fine with many other accounts so what to do ?

I am running the latest FF on Fedora and few weeks ago I started having this issue where some images aooear scrambled. Pics attached but for example the QR code on messages.google.com looks scrambled. Same for some favicons, some of the iconography on Google maps, and random others.

So far, I've tried disabling VPN and all add-ons (Troubleshoot mode) to no avail. Can't seem to find a pattern, it seemingly happens at random. Any suggestions appreciated.

Hi Firefox Support,

I was directed to contact you by Metamask Support. I'm experiencing a problem connecting to Metamask from Firefox, though it connects without any issues in Chrome. Based on this, Metamask Support believes the issue may be related to Firefox.

Here's what I've done to troubleshoot so far:

Cleared cache data in Firefox. Verified that I'm using the latest version of Metamask (34.0). Encountered an error when trying to switch networks with the message "unable to connect to Polygon." Confirmed that no other wallets are causing conflicts. I've attached some screenshots for your reference.

Given that I can connect to Metamask in Chrome and have already cleared data in Firefox and ensured I'm using the latest version of Metamask, Metamask Support suggested the problem might lie with Firefox.

Could you please help?

Thank you.