Firefox Community Forum

Windows 11 Pro on Lenovo ThinkCentre. I switched to ESR a while back, when the regular and ESR versions coincided. All updates since then have worked fine, until now.

When I allow Firefox to update to 140.3.1esr from 128.14.0esr, then the Firefox browser no longer works at all. It comes up, but entering a URL (by typing or bookmark) does nothing and goes nowhere, so I can't use the internet at all.

I had to use Macrium Reflect to restore my system drive to an earlier time to get back on the internet, using version 128.14.0esr, which lost some recent bookmarks, etc. I have tried this twice, with the same result.

Now, a couple of sites no longer work because they say the browser isn't current.

What can I do about this? I hope I don't have to switch to another browser, because there are Firefox extensions I use all the time. However, I can't use a non-updatable browser indefinitely, because more sites won't work.

Can I fix this?

Thanks for your help, AnneF

The NY Times home page has taken to​ animating many of their illustrations. I would like to prevent that; they​ sometimes cause Firefox on my Windows 11 system to freeze for​ periods of varying length, and I simply don't want them. Their helpbot suggested restarting FF and clearing the cache, both​ proved useless. Changing the setting in Firefox to block audio & video has no​ apparent effect. Videos still play from the NYT page and the browser​ still freezes. Is there a way?

firefox is not displaying all characters on a page. Then, the missing characters suddenly get filled in. I have disabled all extensions thinking that is the probable problem, and it seems to work short term. But then it start up again. Have to reload a page, and sometimes THAT doesn't even work. Yesterday, I removed and reinstalled firefox. It was OK for about 1 hour, but now the problem is back. It only seems to be firefox (default browser). Now, hope this helps. I just got an email (Thunderbird) with no content except for a black block then appears and disappears. Have you ever heard of these things happening? P.S. As I type this, characters are starting to disappear....Oh! There back now. Chrome does not seem to have this issue, but I rarely us it (browser of last resort). Microsoft edge browser started intruding about 3 months ago. Comes up as my default browser? (I do not load it ever!). Things are getting really screwy. Hope you can help. P.S.S. as I get ready to send this to you, about 25% of what I have typed is no longer showing.

heres what the error page says:

" We've detected a problem with your cookie settings. Enable cookies

Make sure your cookies are enabled. To enable cookies, follow these browser-specific instructions. Clear cache and cookies

If you have cookies enabled but are still having trouble, clear your browser's cache and cookies. Adjust your privacy settings

If clearing your cache and cookies doesn't resolve the problem, try adjusting your browser's privacy settings. If your settings are on high, manually add www.google.com to your list of allowed sites. Learn more"

cookies are enabled, i whitelisted google and youtube, i clear cache. the only thing that works is if i clear cookies for youtube, but then i have to sign in again. and this is reset next time i open firefox.

When opening Netflix or Amazon Prime in Firefox 143.0.4 (64-bit) my display shuts off. This does not happen when viewing other video websites like Twitch or Youtube.

I can switch to another display port on my video card to get my display back, however, if I go back to either of those websites and login my display shuts off again. This does not happen in other browsers; I have tested Chrome and Brave. I have disabled hardware acceleration with no change in behavior. I have reset the settings of my browser with no change in behavior. I have disabled and re-enabled the privacy setting "Play DRM controlled content" with no change in behavior.

Why is Firefox shutting off my display when going to these websites?

When browsing, I sometimes (more often than not) get a Secure Connection Failed message. The Try Again tab clears the problem sometimes (not that often). This problem has just started happening in the last week, during which I have not made changes to any settings in Firefox. This problem does not exist using other search engines for the same site that I am trying to access, and I note that I also get this same failure when trying to access some Firefox webpages. Is there a fix to this other than contacting the web site owner, which I doubt is the cause of the problem, or for ease and simplicity should I just change to another search engine that does not have the problem?

On Windows 11 laptops, I am currently using an Acer Nitro w/ 12th gen Intel i5 16GB RAM, I use my touch pad for scrolling on sites with infinite scrolling. Occasionally this function breaks, when it does it breaks for every tab in the browser window including the setting, I haven't found a singular or specific cause yet. I have troubleshooted it in the community, the prevailing logic being that themes or extensions are causing some incompatibility, so I have reset everything to defaults and made sure I have no extensions loaded, and the problem persists. I can temporarily fix the issue by going into my settings and turning hardware acceleration on and off again. I am writing this to hopefully point out this bug as clearly as possible in hopes that your programmers can fix it in a future update, as repeatedly turning a setting on and off to "fix" it might not be the best solution in the long term.

tab groups can't get a new groups to actually show up even though they show up in the title bar and does not have the box around the other preexisting tab groupings. am using windows 11 on a desktop. i suppose something got changed somehow, but i have no idea of why this started nor how no fix it. any and all help greatly appreciated! wolfgang

Over the past 3-4 weeks, everytime Windows pushes an update, it switches my default browser (Firefox) to Microsoft Edge.

I have spoken, at length, with Microsoft about why this is happening and how to prevent it. Ultimately, their final response is that Microsoft is going to switch my default browser to Edge with every update.

First, I´d like help to find a way to block this from happening without having to just stop all Windows updates.

Second, Years ago, Microsoft lost a lawsuit because of the monopoly when they forced everyone to use their Internet Explorer, but now, it seems that they´ve just decided to ignore that ruling. Can anyone tell me which EU organization I should file a complaint with?

Hi, I’m having trouble keeping my bookmarks in sync between my Windows laptop and Android phone using Firefox Sync.

I’m logged into the same Firefox account on both devices, and Sync is turned on. However, new bookmarks I add on one device don’t appear on the other.

I’ve already tried:

Signing out and back into my Firefox Account

Forcing a manual sync

Checking that both devices have the latest Firefox version

Is there a way to manually trigger a full re-sync or reset the Sync database without losing data? Thanks in advance! 🙏

Hi,

I have noticed that quite often web sites are not opening the first time and FF reports broken connection. Refreshing or trying the second time helps - sites open very quickly.

What may be the problem?

I am using the most recent version on Windows 11 24H2. This behavior appeared about a week ago. I have reinstalled FF but it didn't improve anything.

Thanks!

RoBoform sent me a notification that my master password may have been compromised and advising me to change my master password. I did change my master password, and now RoBoform won't accept either my old or new master password, so the app becomes unusable. How can I fix this?

Hi, I've been using tab groups for a while and i had some pretty important tabs save there. I wanted to know if they get deleted after a while or not, Because all of mine suddenly disappeared. And also is there anyway to get them back?

The issue started about one week ago (today is 10/11/25). When I wanted to print while in Firefox browser, the print never executed. Instead the screen froze as did the browser. I had to do some experimenting to use my pointer and open a different browser. Yes - besides the pointer being frozen (all that showed was an hourglass) my keyboard was also frozen. When I finally opened a different browser and printed the same item, no problem. I had to close Firefox to be able to fully use my laptop again. I searched the solutions and none had an effect. Firefox would still freeze/hang/lock up when trying to print. The browser is up to date.

In one of my Firefox installs, the Profiler automatically starts recording every time I open Firefox. There's a button on the right that looks like a speedometer and it is blue until I tell it to stop. Then it is taskbar button color.

Profiler instructions at https://profiler.firefox.com/docs/#/./guide-removing-profiler say to simply drag this button off the toolbar and it will stop record. On restart, it's back on the toolbar, and it's recording.

I have tried refreshing Firefox. Doesn't help.

I have tried uninstalling and reinstalling Firefox, and then setting up a new profile. Doesn't help.

I have tried deleting prefs.js. Doesn't help.

I have tried opening up the developer console, opening settings, and unchecking "performance." Doesn't help.

I searched the registry and found a key called MOZ_ENABLE_PROFILER (iirc, something like that). I set it to zero. Doesn't help. I then deleted the key entirely. Doesn't help.

How do I get rid of this thing? It must be a registry setting of some kind, as it appears in whatever Windows account I open Firefox from, but I can't find it. It is deeply frustrating as the computer it is happening on is my oldest computer, and I don't want a recorder running in addition to Firefox.

Hello, I recently purchased and started using the Hyperx Cloud 3 wired headphones. When I watch a YouTube video or shorts with these headphones, if I skip forward a few times or scroll to watch a new short, a loud popping noise occurs in the headphones. I turn the volume up and down, and it fixes it. Interestingly, this doesn't happen in other browsers, only in Firefox. This is very interesting, and I can't figure out why. I wanted to share this with you because I love Firefox.

NOTE: There's no problem with the headphones; they work perfectly. This is an issue only in Firefox.

hi team, recently i can not open any PDF when i am in gmail using Firefox Browser is updated to latest verison, i have also check settings under application and whatever i choose, when click in PDF in my gmail, i can not open it directly, i need to go right click on it, open in new tab, then it downloads to my PC and open in new tab?. stupid isnt it? i have tried many settings and nothing seems to be working, any chance that i can just click on PDF and it opens in new tab or my Adobe app, without download it to my PC, cause sometimes i just want to see wtf is the attacment...

cheers,