Firefox Community Forum

Hi,

After updating Firefox, I can no longer play YouTube videos, and tabs frequently crash. - Error message: "An error occurred. Please try again later." - Issue persists after Firefox Refresh (about:support). - Google Chrome plays YouTube videos normally without any issues. - Security software (Kaspersky) is installed.

Crash Report ID: 87813821-dd94-4e47-816c-1c62f4f0c0c3

Could you please advise how to resolve this issue?

Thank you.

Ich wollte die Beihilfestelle beim Landesamt für Finanzen aufrufen. Das ist leider nicht möglich. Könnte es sein, dass es einen Zusammenhang gibt damit , dass ich vor ein paar Tagen ein Antivirusprogramm von Avast heruntergeladen habe, nachdem ich seit Monaten dazu von Avast genötigt wurde, da mein Laptop angeblich schwere Probleme aufweisen würde. Beim Online-Banking hatte ich vor Wochen ein ähnliches Problem (das war allerdings noch vor dem Herunterladen dieses Antivirusprogramms), dass meine Zahlungen nicht verifiziert werden konnten. Nach Kontaktaufnahme mit dem Service der Bank sagte man mir, dass ich einen anderen Browser benutzen solle, da Firefox angeblich Sicherheitslücken aufweisen würde.

Translation, may not be fully in line with your standard wording. The original message, in Swedish, below.

"When I seek information with Firefox, since some time I always get this error message from AVG: "Threat secured, We prevented your sonnection to thai.rontyig.come since it is adnagerous website. Threat category; URL.Blacklist"

Even when I search for AVG, the same msg is shown. If I use Chrome or AVG Secure browser, there is no error msg.

"När jag söker en uppgift med Firefox får jag sedan en tid alltid upp ett felmeddelande från AVG: ” Hot Säkrat Vi förhindrade din anslutning till thai. rontyig.com eftersom det är en farlig webbsida. Hotkategori: URL:Blacklist ” T,o,m, om jag söker på AVG visas samma spärrmeddelande!

Om jag t.ex. använder Chrome eller AVG Secure browser

Kind regards Ulf Hj.

Over the past few weeks some web sites have not been working properly on my PC. The site will open but I am unable to open individual pages within the site. This has occurred only on a few web sites, such as the UK met office, while other sites, such as XC weather, are unaffected. I have tried the web sites in another profile, using private browsing and refreshing Firefox but there is no change. However, if I open the Mozilla VPN and then try the problem goes away. The web sites also work correctly when using the Edge browser and when using Firefox on my laptop and mobile.

I routinely check out several local news outlets' websites and for the last 2-3 weeks, since a Firefox update (using FF 156.0.1 (64-bit) on Win11, v25H2, Build 26200.9550) I keep getting a Norton popup box saying "we prevented your connection to <x> because it is a malicious website", where 'X' is either littlestastronaut.com, or something like planted.com (screenshots of Norton popup windows doesn't work). This doesn't happen with any of the other couple dozen websites I visit, just 2 out of the maybe 5 or 6 different news websites I look at. Odd thing is I look up either of these two 'dangerous' websites and they either don't exist or they are some school related website. That popup comes after I have to select either "continue without ads" or go to the FF address bar and disable the ad-blocking for that site, so I'm thinking that there's maybe something in FF that is causing this? It happens on both of these sites whether I check "continue without ads" or disable the FF ad-blocker which doesn't make sense that that 'malicious site' is contained within an ad on the news site because on one I don't disable ads so it shouldn't even come through but still Norton catches it??? Yes, A-I will one day rule the world....ya-right.

every time I do a search this comes up: with captcha;About this page Our systems have detected unusual traffic from your computer network. This page checks to see if it's really you sending the requests, and not a robot. Why did this happen? I have already uninstalled and did a refresh but nothing works

Recently any web site that runs Java scripts will not load in my browser unless I have VPN turned on. The web sites used to load with no problem. I don't know what's going on. Can anyone help me with this issue. ML

I get incessant popups that a virus has been detected from McAfee and to press the Delete Viruses button. I only hit the top right X to make it go away and then at least 10 more immediately pop up. How can these be removed. They even show up over other browsers as a right side popup.

I'm at the point of removing Firefox. How can these be removed from Firefox?

I followed directions for "Secure Connection Failed" and I still get the screen when I reopen the email account. I went to Avast, Settings, Protection, Core Shield, Configure shield settings-Web Guard and unticked Enable Https Scanning. I hoped by following the directions found on your website the problem would be resolved. Now What do I do to get into my email account?

When I try to go to Google's website, I get this message:

Secure Connection Failed

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. What can you do about it?

The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the website’s administrator about the problem.

Error Code: PR_CONNECT_RESET_ERROR

The same thing happens with YouTube TV. My Bitdefender also flagged it as a suspicious page.

I am using Firefox Beta 156, Version 4 on Windows 11 Professional, 25H2. I have an odd error, "Look up over IPV6 failed lookup." It occurs on two different VPN's, Proton Free, and Windscribe Professional. Any assistance, or insight would be highly appreciated. Thank you kindly.

I’ve been having some connection issues while using Mozilla VPN with Firefox. Some websites either load very slowly or occasionally fail to open until I disconnect the VPN.

I’m trying to understand whether this is more likely to be related to Firefox, the VPN connection itself, or the server being used.

I’ve also been looking at other VPN options such as CometVPN and was wondering whether changing providers could realistically make a difference in this kind of situation, or whether I should first be checking Firefox/network settings.

Are there any specific DNS, proxy or Firefox settings that are worth checking when troubleshooting this type of VPN connection problem?

If i want to watch a video that has geoblocker and i switch VPN on, some videos stop after a short time (2-3 min) and if i refresh the page it will again run only for a short time after choosing the scene and continue watching. Some other videos on the same page just run fine with VPN on, without any interruptions. Why is that and what to do?

I prefer to use the Microsoft Store version of Firefox, but after every update I have to allow it all over again in Windows Firewall. There must be something I can do about this so it won't happen again. And yes I know it's because it thinks it's a new application, but Edge does not have the problem. So there must be a workaround for this.