Firefox Community Forum

I recently updated to 125.0.1 and now get 'failed to check for updates': - when I manually check (help > about Firefox) (see image) - in 'settings' it also shows 'failed to check for updates' (see image) I never had such a problem with previous versions; any suggestions?

I have the strangest problem. If Firefox is closed and I do a speedtest in another browser, download a file, or do other internet activity I'm getting about 200-250Mbps d/l and 100Mbps upload. As soon as I open Firefox, whether I load a page or not, the upload speed stays the same, however the download speed drops to about 25-50 Mbps. This only happens on one PC, the upload isn't affected, and resolves itself as soon as Firefox is closed. Here's what I have done without any change in this behaviour;

• Rebooted
• ipconfig /release /renew /flushdns
• Removed and reinstalled the network adapter
• Enabled, disabled windows auto tuning and tested (slower disabled)
• Updated Windows
• Refreshed Firefox
• Uninstalled Firefox, deleted remaining folders from Appdata (Local, Low, Roaming) as well as the program file directories and "Mozilla" registry entries. Restarted and reinstalled. Issue immediately resumed when Firefox was open.

Also when connected to a VPN Firefox download speed increases to about 60Mbps and is consistent across other software. If I split tunnel another browser outside the VPN, it is still stuck at 60Mbps. If I close Firefox the speed increases.

This makes absolutely no sense to me, so I'm hoping someone can shed some light on this - but it does seem to be something Firefox is doing.

Thanks for any help anyone can provide.

Hello! I've recently switched to Firefox from Opera. However: After the browser Closes, It will always Refuse to boot up. Even Shift-Click Doesn't work. It opens, but Crashes almost Instantly. OS: Windows 11 (Build 23H2)

Ever since the update, I have had pink flickers on videos on youtube and twitter. They last for less then a second, so I couldn't grab a screenshot of it. After doing some reading online, I turned off hardware acceleration which turned the pink flicker black and now effects several sections of the web browser.

I just switched to Windows 10 from Windows 7. Firefox was working fine, but now many or most pages are garbled; see screen-capture fragments at http://www.fenichel.net/firefox/. I tried a new Firefox 64-bit, but it crashed on most pages.

Every time I open Firefox after closing it, I get the message below. I can click the button to restore session and it works every time. With each update, I hope to never see this message again, but after installing a new version on Ubuntu today, I see the same familiar message. This is not linked to a computer, or an operating system because I've seen this on both Ubuntu and Mac. If Firefox could literally just click the button that would be awesome.

Sorry. We’re having trouble getting your pages back.

We are having trouble restoring your last browsing session. Select Restore Session to try again.

Hello!

I get this error often when I try to access various websites. This doesn't happen when I use Opera, so I assume the problem is not with the websites.

My OS: Windows 10. My Firefox version: 127.0 (64-bit).

My issues:

1) Every time I close Firefox I get the Mozilla Crash Reporter telling me that Firefox has crashed. Sometimes I even get the Mozilla Crash Reporter when I start Firefox. But Firefox is still there.

2) When I turnoff my Comodo Firewall, Firefox has no Internet connection.

I have done clean uninstalls/reinstalls over and over. I go thru and adjust settings. My other browsers work fine, including WaterFox, WaterFox Classic, and Vivaldi.

I tried turning off my security software to test. Specifically exiting Comodo Firewall seems to have caused Firefox to not have an Internet connection. All other browsers have Internet access except Firefox. And the Crash Reporter cannot "report" when the Firefox Internet connection does not work, though I did have it report many times when the connection DID work.

One other clue: In Task Manager I see that even though I have closed Firefox, there over 20 instances of it still running. When I try to open it again, I get the "Firefox already running" error message. When I try to kill these instances/processes many will not close.

This problem has been persistent for more than half a year since I built my new PC. I am on Windows 10 LTSC. Besides Comodo Firewall, Emsisoft Anti-Malware is my main anti-malware.

Please help! Thank you!

Здравствуйте, при каждом запуске браузера происходит падение, как в обычном так и в безопасном режиме,входит раза с 20го а то и больше. при попытке что либо скачать или загрузить сразу же происходит падение. делал очистку и чистую установку удалял все аддоны проверял версии но ничего не помогает.ниже все последние отчеты по падениям bp-5258a840-e170-42ae-a91a-c86ef0230129 29.01.2023, 12:00 bp-9f26789e-7f92-4d89-8146-dd3cd0230123 23.01.2023, 15:18 bp-81b845d2-4422-4bd2-b462-8dbac0230123 23.01.2023, 15:18 bp-0a7f5964-634a-4789-9fb1-2ef520230123 23.01.2023, 15:14 bp-fa242af3-ebfd-4eca-bef7-ab7c50230123 23.01.2023, 15:11 bp-c711a64b-b942-4553-bb83-3d56e0230123 23.01.2023, 15:10 bp-7188edd5-7f6b-4f9f-a8d1-b48c60230123 23.01.2023, 15:08 bp-18a3eb0b-cdb3-4d6c-8363-0b3bc0230122 22.01.2023, 15:28 bp-e11e216a-e119-477f-a856-992350221207 07.12.2022, 13:52 bp-d74be234-27c4-46e1-9410-bac540221201 01.12.2022, 21:37 bp-94c9c72f-d557-4e85-bfba-f4ebe0221129 29.11.2022, 12:30 bp-2a8cf968-a783-4152-a1bd-7cc700221129 29.11.2022, 12:30 bp-a2660331-09a7-4692-907e-cd46b0221031 31.10.2022, 14:01 bp-717a4c22-e957-4046-8bdb-b11320221026 26.10.2022, 12:39 bp-c3f50104-9de4-4e9c-954b-38cbc0221026 26.10.2022, 12:35 bp-83773546-15a6-40a8-af96-ad25d0221024 25.10.2022, 0:23 bp-15aa9834-d969-40db-bcc6-e10340220906 06.09.2022, 10:33 bp-24567997-cde6-4616-a1cc-154470230129 29.01.2023, 18:19 bp-3e56a7e2-b9f0-49bb-bb23-b4c580230129 29.01.2023, 18:19 bp-77aa70d4-a97f-4d9f-ba27-e45910230129 29.01.2023, 18:19 bp-750e9d94-865f-4a29-9533-74d1f0230129 29.01.2023, 18:19 bp-b68c0ceb-159a-478c-a41d-e34390230129 29.01.2023, 18:19 bp-03222548-874f-417a-9551-e2c090230129 29.01.2023, 18:19 bp-42fe9c88-0b31-453d-8af4-2e00c0230129 29.01.2023, 18:19 bp-0bb24d82-e08e-49c2-be8d-043390230129 29.01.2023, 18:19 bp-4fefa779-6f52-4799-ba12-6252f0230129 29.01.2023, 18:19 bp-e7e35422-5ae1-43bf-9307-f0e720230129 29.01.2023, 18:19

Every few hours, maybe 4 times a day, XULRunner appears and tabs me out of everything. It says "This profile was last used with a newer version of this application. Please create a new profile."

There isn't a 'create new profile' button. I already made a new profile as well, but it did not fix the problem.

I recently changed to the newest ESR, 115.10.0esr, to fix streaming issues.

Hi,

First, this is not a complaint. Firefox is an outstanding product that makes me very happy.

I though I could post the following, because this community strives to make it better.

In a nutshell, I have a very fast Internet connection, up to 6Gbs/1Gbs speed, and Firefox is not able to go over .9/.8

I attach are 2 tests, one with Firefox and one with Chrome.

Note that when using it for anything else than speedtest, Firefox does not feel slow at all.

I'm not requesting a fix, just thought that somebody would like to know.

Hello, I've been trying to use my Firefox browser for the past week and nothing I do seems to work. Whenever I click the icon on my Windows desktop, it sends me the following Mozilla Crash Report:

We're Sorry

Firefox had a problem and crashed. We'll try to restore your tabs and windows when it restarts.

To help us diagnose and fix the problem, you can send us a crash report.

I've restarted my computer and tried to change multiple settings, but the same pop up message keeps appearing. I've checked the box that sends the crash to Mozilla and clicked the button that says Restart Firefox, but still nothing. There's also a "Detail" button that provides a bunch of information that I'm not sure how to interpret haha but I can try to copy that if you think it would be helpful.

I would appreciate any help. I'm looking to get a new computer (not sure if that is part of the issue), but I'm really hoping to be able to save the bookmarks I had.

Thank you.

Hello Good People,

I noticed that the snap version of Firefox had a lag issue when typing into input field. For example, when composing an email and wanting to use backspace to quickly delete a misspelled word, then backspace works slowly, stuttering and jittering. If I hold down a key in the input field it also lays the character down in a stuttery, slow way.

I tried reinstalling the system and that solved the issue. But it has returned again. Maybe it was an update. I also installed WINE and waybridge to get some windows plugins to work on my DAW. I don't know if that has affected it.

I also tried removing the snap version and installing firefox using the terminal but the problem persisted.

It's an annoying problem. Any advice appreciated.

My Firefox tab keeps crashing on a particular website. Whenever I go to twitch.tv, the site begins to load and then I get the "Gah. Your tab just crashed." screen. I'm only getting this crash on twitch.tv pages, and this issue just started on May 31, 2024. When I try to open a twitch.tv page in Private Mode, the page loads just fine. I've never had a Firefox tab crash prior to this.

I've tried turning off all of my Firefox extensions, but that didn't solve the issue. I also tried opening Firefox in Troubleshooting Mode, but I still got the tab crash. I'm using the latest version of Firefox as of today's date.

Hi,

I can't watch live stream on youtube. I see only black screen on loading circkle. Ads working fine but after them i see what i said before. When live is over then i can normally watch it. I can watch twitch normally. There is problem olny on yt. best chris

I am using Windows 11 and FF 127.02. I have read the lag issue with Youtube was suppose to be corrected with FF 127.02 but it is not. I have been using FF for many years now an love it. It is my understanding that it is the ad blockers causing the slow down. Do you have an estimated date when this will be resolved. I have tried every trick included running it in diagnostic mode or trouble shooting mode. Nothing seems to work. Not even a refresh.

Thanks

Similar to the issue described in this thread (https://support.mozilla.org/bm/questions/1240674), I am unable to open Firefox - it simply refuses to open. I've tried multiple times, the option key, and re-installing. Nothing seems to work, which suggests something about my user settings is the issue, but a) I am not keen on deleting this if possible and b) I won't delete my user settings unless that is necessary. Like the attached thread, I am happy to attach crash reports, but without the ability to even open Firefox properly it's not obvious how I do this - force-quitting it just sends a report to Apple.

Any help much appreciated - I'd quite like Firefox working again.

My laptop is a MacBook Pro 13 2020 (Intel) running macOS Monterey (12.7.4). I installed the version of Firefox available for download as of writing (v127.0 based on Finder).

Firstly, I have a brain injury. I am easily overwhelmed by information and am slow to understand - especially anything to do with I.T.

Recently, I began successfully accessing the internet / Firefox via my Wifi Repeater. As of two or three days ago. I keep being asked to "log in to access the Internet", but even after I do it (successfully, as far as my repeater is concerned) I'm no further forward; I keep being asked to log in.

Thanks to my repeater I have a strong signal when in my garden office. But after a month, Firefox has suddenly stopped allowing me to use it. I am back at Square 1, before I purchased the thing.

I need need to work from my office. Please help resume my Repeater's access.

Kind regards,

Sean

Today I started getting repeated notifications, every 5 to 10 min or so, that my McAfee subscription has expired, my credit card has been rejected, and that my computer is infected. I do not use McAfee, either in Firefox or on my computer. I use the security suite that comes with Windows. I cannot stop these messages from appearing, and disabling notifications from McAfee in the messages does no good, the notifications just keep coming. HOW DO I MAKE THEM GO AWAY? They must be SPAM because I've never had a McAfee product on this machine, EVER. Thank you so much for the help, Dave Templeton

Hi.

Whenever I click a button on the keyboard, the CTRL+F function comes up on it's own. I had previously disabled it because it ruins all shortcuts on youtube and with tourettes, I often also get thrown around if I am reading long articles, because of misclicks.

Unfortunately I did the big mistake of updating, also with a tourettes-missclick, so my question is: 1) How do I remove the 'quick'-search function? I want the Ctrl+F bar to come up ONLY WHEN I CLICK ctrl+F, and I want it to go away again if I click ctrl+F again. I forget how to do it. 2) How do I remove all future update prompts? Given that it has been made so hard to configure firefox into something tolerable, I don't want to throw all my setup away with minor updates always thrown at me. It takes me a long time every time there's an update, I have to fix language and other stuff back again. It's just not worth it in time for me to use Firefox, if I have to make a setup so often. 3) Recommendations for the best version of Firefox to go back to and stay in for eternity, alternatively, browsers that does not change or add functions without first asking the user... (The answer is no, by the way, I don't want more new fancy functions)

Sorry for this nagging but I simply can't use my browser like this. It's just not working.