Firefox Community Forum

Hello,

I have the latest version (140) of Firefox installed on a Windows 11 laptop with the latest Windows updates. It works fine for my user (who, BTW, has admin privileges) but it won't even start for my wife's Windows user. To be precise, "won't start" means that when you try to launch it it sometimes looks like it's trying to create a window but immediately closes it with no error messages, no crash reports, no logs, nothing at all. It won't even start from the Run menu with any command line flag like -p, -ProfileManager or even -safe-mode, I tried all of them.

Other things I've tried: 1) Check the Windows event logs. Nothing. 2) Run sfc /scannow to check for corrupt system files. 3) Uninstall Firefox, delete the Program Files\Mozilla Firefox folder, and re-install it. 4) Move the entire Firefox folder inside %appdata% to a temporary folder outside users. Firefox recreates it, creates 2 new profiles and dies silently again! 5) ...and a lot of other things that I read online and do not remember anymore.

At this point I'm at a loss and I'm an IT guy. Of course I have no idea how this happened, the browser used to work fine up until a week ago or so. Other software that might interfere is Malwarebytes, but it works fine for my user, so... 🤷🏻‍♂️

Thanks in advance for any ideas.

When signing in to online Shaw Webmail, message says 'Security Check Failed. Clear your browser cache and retry'. Screenshot attached. Have done so in "Clear browsing and data history", (as per Firefox guidelines) multiple times, for all History and cache. Did not resolve issue. Contacted Shaw Support; they instructed to try logging in with Chrome browser. Worked fine. Issue appears to be strictly with Firefox Browser (on multiple devices). I prefer Firefox over Chrome. Any advice greatly appreciated.

Today randomly i noticed that my bookmark bar is waaay shorter out of the blue, i didn't change or adjust anything, all i do is the updates from mozilla that's all, it was all music it really saddens me because atm it's lost forever, i hope somebody can help me (i don't know since when it disappered i literally just noticed it right now ...)

Guten Abend, bisher konnte ich wenn ich mit Firefox arbeite und etwas herunter geladen habe, den Bereich für alle Downloads anzeigen immer als Tab anzeigen lassen, auch ohne dafür ein Addon zu installieren. Nachdem ich Firefox nun auf einem anderen Computer neu installiert habe, kriege ich diesen Bereich nur noch als neues Fenster angezeigt, was ich als sehr störend empfinde. Kann mir jemand weiterhelfen, wie ich das wieder so einstellen kann, das die Downloads wieder als Tab werden? ich weiß leider nicht mehr wie ich dies damals umgestellt hatte.

Grüße Crash Overried

I own a website that has chat rooms for each of my advisors. As of 2 days ago they are all having issues. I have them login with Firefox but now asking them to use Google Chrome...............low and behold it works

Whats the issue as i believe it started with the latest Firefox update

Thanks so much

Natalie Damsel In Distress :)

Where do i go to see if rumbletalk.net and rumbletalk.com is "white listed"??

Hi Mozilla Community,

I’m facing an issue where my website, [malicious website removed], is not loading properly when accessed through Firefox. It either takes a long time to load or sometimes fails to load altogether, even though it works fine in other browsers like Chrome and Edge.

Could you please guide me on what might be causing this issue? Are there any specific Firefox settings or known compatibility issues I should check? Any troubleshooting suggestions would be appreciated.

Thanks in advance for your help!

I only discovered the tab groups function within the last few weeks, and upon finding, I moved dozens of open tabs into organized groups. On using the feature, I noticed the ability to save and close groups and that I could recover those closed groups by using the arrow in the browser toolbar.

When I got to my PC this morning, my desktop had restarted or hibernated or something; when I started it up, Firefox was open which is unusual as I don't have Firefox set to open on startup - usually so I can restore sessions after crashes. All of my previously open tabs were open, but none of the closed, saved tab groups are visible. I cannot find any of the dozen or so closed tab groups and it appears I've lost easily hundreds of tabs.

I tried looking at the session backups but it seems because Firefox was open on start, it overwrote the previous session data. Is there any way to recover those saved groups or am I SOL?

I am having an issue where my browser does not show the webpage title or website name when it returns results. I haven't changed anything about my browser recently and I'm really unsure of what is going on. Any advice to fix this would be appreciated.

am trying to log into the indian evisa (indianfrro.gov.in) website to print off an ETA (Electronic Travel Authorisation) and when logging into the site I am getting a warning saying potential security risk ahead

Warning: Potential Security Risk Ahead

Firefox detected a potential security threat and did not continue to indianfrro.gov.in . If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.

What can you do about it?

The issue is most likely with the web site, and there is nothing you can do to resolve it.

If you are on a corporate network or using antivirus software, you can reach out to the support teams for assistance. You can also notify the web site’s administrator about the problem.

I do not know what to do for the best

I use Windows, and my browser is already set to open windows and tabs and to automatically open Firefox on startup. My history is set to Remember History. I've tried using Ctrl + Shift + T with no luck. What else can I do to get this function back?

(This is copied nearly directly from a post on r/firefox made a few hours ago—I decided it was best to spread it here for more exposure. The only change was the removal of the add-on names from the title due to character limits; these are Form History Control and Text Area Cache.)

I hope the title explains what I am looking for well. My main computer has had... spooky behavior with its file system recently, and I have been recommended to make a back-up, format my drive, and re-install my operating system (possibly upgrading from Windows 10 to 11 in the process). The biggest hold-up to me doing so is this, as I have no idea how to transfer the extension data between installs, or convert it into a human-readable form. The sheer number of writing drafts in those extensions both make losing them an unacceptable situation and copying the data manually into a document entirely impractical. So, can anyone help me with this? For context, I was on Firefox 138.0 when I stopped using my main computer due to those issues. (Note: It will certainly last long enough to do the Firefox Syncing and other back-up operations, just not for many more weeks or months.)

Description: while viewing videos on youtube, twitch, odysee (and possibly other sites with videos), the video player may suddenly stop playing, and after that, no video in firefox can be played. Restarting the browser makes this issue disappear for a while, but i'd like a permanent solution.

What i've tried so far: Disabling uBlock Clearing cache and cookies Enabling/Disabling hardware acceleration Disabling proxy extension Disabling antivirus on PC.

sense I leave tabs open that I want to watch latter i would like to be able to see the video before I close the tab: when i open it says the tab that is taking the most memory is "https://youtube.com (15668)" I tried clicking and right clicking but no functional it locate or go tab then i opened the drop down the search bar set it to tabs and typed in "https://youtube.com (15668)" but it showed no results.

When I start Firefox without any internet, i.e. Airplane mode, the browser starts up pretty quickly. However when I connect to internet, either via WiFi or LAN, the startup time increases dramatically. This means that Firefox is connecting to the internet, waiting for some server to respond and then finish the launching of the browser. I have been able to figure out that Firefox connects to the following URLs when it launches.

1. cdn.statically.io
2. img-getpocket.cdn.mozilla.net
3. ublockorigin.github.io
4. aus5.mozilla.org
5. content-signature-2.cdn.mozilla.net

Please note that this is not the complete list, it is just what I have been able to figure out. There might be other URLs that Firefox connects too, which I am not aware off.

So my questions are as follows 1) How do I come to know all the URLs Firefox is connecting too, when it launches? 2) How can I check how much time does the server take to respond back to Firefox? 3) Is there a way that to stop the connection between these servers and Firefox? For example, pockets is getting shut down and I do not use pockets. So I maybe the connection to img-getpocket.cdn.mozilla.net can be terminated or stopped. OR maybe the connection to content-signature-2.cdn.mozilla.net can be asychronous and need not hold up the browser loading and so on