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After my last Windows 10 update this week, suddenly, Microsoft Family safety settings STOP Firefox from starting up! Can't start Firefox. DRASTIC! DEVASTATING So I HAD to import everything from Firefox to Edge browser, just to send this message. But I left Firefox as my default browser. I am the head my Family group in Family Safety settings.

After clicking on Firefox I get the following message from Family Safety: "You can't use Firefox because of your family safety settings, but it doesn't hurt to ask" Then there's a place to click on: ASK TO USE(Firefox)

  Before clicking on this I removed internet access to my machine. ASK TO USE is a permission FROM Microsoft that never comes if clicked on. These people have HIJACKED my ability to use Firefox.

They should be sued.

браузер не открывает один сайт. остальные сайты открываются. удалял кеш и куки. отключал антивирус. добавлял сайт в файл hosts. А в приватном режиме фаерфокс открывает этот сайт. помоги, что можно сделать? the browser doesn't open one site. the rest of the sites open. deleted cache and cookies. disabled antivirus. added the site to the hosts file. And in private mode, firefox opens this site. help, what can I do?

Hello.

I use Firefox on an computer with Ubuntu, (installed as snap) and have noticed that since the update to version 140 (specifically, version 140.0 canonical-002-1.0), closing a tab causes a noticeable delay : that is, upon any action that would close a tab (clicking on the cross, pressing CTRL+w, or middle clicking), there is a delay of about 200 to 300 ms before the tab is actually closed.

However, during this delay, the window still responds to inputs, leading to rather annoying situations. For example, during regular usage, I usually open a great number of tabs. When I am done with browsing, I close them, by repeatedly clicking the cross button on the tabs. It used to be that the tab under the cursor would immediately close, then the next tab would slide under the cursor, and I would click again to close that one, etc.

But now, when clicking the cross button, the tab is not closed, and when I click again after a small delay (because of muscle memory), the tab is still there. This cause the two single clicks to be treated as a single double-click, which for some reason puts the window in full-screen mode (but only with the snap version; I'm not sure what's going on here).

When using CTRL+w when closing tabs, the delay is still there, but the inputs are correctly handled. If I press CTRL+w three times at the usual rate, I can see the three key presses, then nothing happens for a few instants, then the three tabs close at the same time (i.e. the delay is from input to tab close, not from tab close to other tab close).

This behaviour is completely absent on Firefox (also version 140) on my windows computer.

This delay does not appear when creating tabs, and it does not occur either when closing the window or when closing the last tab in the window (leading to an amusing situation where shutting down Firefox is actually faster then closing a tab). These operation keep going at their previous speed, immeasurably fast to the human eye.

Navigation does not appear to be meaningfully slower than before the update, and the CPU/memory usage is very reasonable.

Curiously, this appears to be a fixed delay. Closing an empty tab takes the same time as closing a very busy one. Closing a tab when there are five takes the same time as closing a tab when there are thirty.

This issue makes browsing feel incredibly sluggish.

Is there a solution for this problem ?

Edit 1 : I have tried to run Firefox in troubleshoot mode, but there was no difference in behaviour. Edit 2 : Fixed typo. Edit 3 : Added exact version. I also tried to refresh Firefox, but the issue remained. Edit 4 : The problem is still present in version 140.0.1 canonical-002-1.0.

Hello

I've a Dell optiplex desktop with win 10/11. Every time firefox opens it covers the hidden task bar...I have to tap the windows key to be able to access it.

Have looked around at several threads and no solution...any ideas?

thx

Ross

When I try and open Firefox, a window pops up for a millisecond before going off my screen, and firefox doesnt open. This is extremely irritating as i downloaded firefox since I also cant open chrome. Is there a fix to this, I have restarted my computer and have uninstalled and reinstalled firefox.

Thanks, Nathan

Ich kann keine Mails löschen seit dem letzten Update. Versuchte den Papierkorb löschen. Es heißt: Es steht nicht genügend Speicherplatz zur Verfügung, um neue Nachrichten herunterzuladen. Löschen Sie alte E-Mails, leeren Sie den Papierkorb sowie komprimieren Sie Ordner und versuchen Sie es anschließend erneut.

Thunderbird 138/139, Windows 11 Pro 23H2. While composing a message, after a few lines the app freezes. Both the compose window and the main TB window freeze. Only opening the Windows Task manager allows me to close them. This did not happen with earlier versions.

If I save the message every few seconds while composing I can get most of the message back and continue after restarting TB. This behavior is the same in both the normal and troubleshooting TB modes. I can't even find a crash log to send to Mozilla.

Where shall I look next?

Thank you!

I watch Youtube on the Firefox browser for android on desktop mode on my Samsung Galaxy tab A9+, usually in private. Lately Youtube puts me in a playlist when i click on music. This only happens when I watch music videos it's not an issue on any other type of video so far. It doesn't do it when I am logged into YouTube, private browsing or not.

I have not been able to access my on line banking for three days now. I ran a diagnostic and everything was fine, no issues so why cant I connect to the banking server. Please help.

Recently (Jun 2025) When Firefox closes, an empty taskbar icon for Firefox remains. When click on it, it does not bring up anything. Nothing in the Task Manager to suggest that a copy of Firefox is still running.

Witam serdecznie, czy ktoś wie w czym może być problem. Nagle program pocztowy przestał się włączać. nie wiem co robić już odinstalowałem pobrałem instalke na nowo zainstalowałem, i dalej to samo nie uruchamia się. Nic nie zmieniałem w ustawieniach, Proszę o pomoc

I have been runnign Thunderbird for a number of years. Several days ago when I started the app it said it was compacting the Gmail ALL Messages folder. It would never finish. So I downloaded the 139 version of Thunderbird, and installed it. When I try and start it I get a message at the bottom that says tomdyer72@gmail.com: looking up imap.gmail.com. It never comes off of that. After a few minutes, or if I click anywhere else in Thunderbird, I get the "Home - Mozilla Thunderbird (Not responding) at the top of the screen, and it will time out with the cnacle, or continue waiting message.

I have tried uninstalling all versions, and re-downloading the 139, and it still does the same thing. How can I recover this without losing all of my stored emails>

Within the last couple of days, while using Thunderbird, my list of unread emails disappears and I get a box that pops up that says: "The folder 'inbox on johnking2@comcast.net' could not be compacted because writing to folder failed. Verify that you have enough disc space, and that you have write privileges to the file system, then try again." If I click OK, my list of emails returns for a short while. I have no idea what to do, as nothing has changed, that I am aware of. I have a SD hard drive with about 17% space available. This is on a Dell laptop with i7 processor. Please help!