Firefox Community Forum

As of 7/10/2025, Xfinity Streaming does not open through Firefox. I much prefer Firefox to any other browser so I am a little mystified as to why all of a sudden Xfinity Streaming does not open. I receive my Comcast email through FireFox but when it comes to streaming content, the Xfinity logo just sits there and does not open.

There is one particular website that I use quite frequently. Lately I haven't been able to log onto it without encountering a page verifying I am a human, and I can't proceed (the page just loops). This has happened on other browsers too, though I fixed the problem there by disabling my adblocker. But that doesn't help here on Firefox. Any suggestions?

recently some websites won't open. in other browsers sites open fine. problems with pinterest.com figma.com cleared the browser, deleted cookies and cache, reinstalled the browser everything opens in google chrome, i attach screenshots

I updated my MAC OS, my Firefox IS up to date. My RING website Log-In no longer works on Firefox, yet is DOES work using Safari, which I never use. Is there a setting on the latest Firefox I can change so I can access my RIng account from my Desktop browser? It DID work last month

Xfinity streaming works on Chrome and Safari but it stopped working on Firefox a few days ago. Why? I am using the latest Firefox version 140.0.4 (64 bit) and I can only receive my emails. The connection to the streaming service does not open. The Xfinity logo just sits there spinning and no connection. Please fix this. I much prefer Firefox to other browsers BUT....

Recently, after the newest Windows 11 update, Twitch hasn't been loading correctly, the tab looks as if it finished loading, but the page gets stuck in endless loading, no other site has this problem, and it happens even opening links to Twitch channels directly. I've added and screenshot of the problem.

I'd love some help or at least know if this is a problem on Twitches end or not. Thanks.

Hi, i cant make some actions in my account in browser game (battleknight) . After click on icon ,,mission,, , page is just refreshed and mision is not activated. Also in Highscore, when i hit some icon to sort players, the same issue always happen. It was OK all years long and game is OK on other browsers, this happened after todays actualization. Thanks for some help. (i tried to restart browser, clear cache)

Using desktop PC with Roku device and Firefox as default browser, V140 / Win10. I don't know if there was a recent update, but I can no longer access tv.apple.com through Roku. I am able to enter my username and password when signing in to tv.apple.com on desktop, but no 2SV window appears and an empty sign-in form appears again, as if my sign-in info is not recognized. Signing in on a laptop with Firefox browser is successful. Signing in on desktop PC through Firefox "Private Window" is successful as well. What settings on desktop PC changed, and how can I fix this?

Thanks.

Why am I getting a 403 Forbidden message when I'm trying to access www.UFC.com, the Ultimate Fighting Championship website??? This site is save in my Bookmarks and I've not had previous issues! Be advised that I tried to access it on MS Edge and had no problem at all!!! If this continues, or if more sites are "Forbidden", I'll happily scrap your server platform!

Carl Piper carlpiper5@gmail.com Firefox user for more than a 2 decades!

При попытке войти в аккаунт twitch появляется ошибка о том что браузер не поддерживается. Я попробовал множество вариантов(какие то были описаны на сайте twitch, какие то предложены технической поддержкой twitch). Вот некоторые из них: 1) Убедитесь, что используйте последнюю версию браузера. 2) Отключите все расширения. Особенно это касается расширений для разработчиков или схожих типов расширений. 3) Очистите кэш и файлы cookie. 4) Перезапустите свой браузер и повторите попытку. 5) также я пробовал запустить с включеным vpn и без него Ниже представлены предложения от тех. поддержки twitch:

  1) As a first step, make sure you're using a supported, up to date browser. The Twitch.tv site is currently developed for the latest versions of the most popular browsers, you can find a specific list here: https://help.twitch.tv/s/article/supported-browsers
  2) Replicate this issue in an incognito window/private browsing mode while your browser extensions are disabled. 
  3) Log out of VPNs or similar software which might reroute requests through an IP address other than your own (how to do this will depend on whatever software you're using).
   4) Avast Antivirus, AVG Anti-Track, and similar software may also affect your connection - make sure to add Twitch as a trusted website or disable it temporarily to see if that resolves it.
   5) Try clearing your browser’s cache and cookies (you’ll need to log into your account again). You can find instructions on how to do this depending on your browser here: https://help.twitch.tv/s/article/supported-browsers
   И ниже мой ответ:

1) I use a supported browser (Firefox latest version) 2) I tried to log in incognito mode and nothing worked either (no extensions installed) 3) I tried to log in to my account with and without VPN 4) I don't have any antiviruses 5) I tried to clear browser data and that didn't help either (running in incognito mode does the same thing)

I cannot sign into my att/yahoo email while using Firefox. After calling AT&T they told me to use Microsoft Edge which I told them I would not! When trying to sign in I receive the error message "It's not you, It's us" try again. It is my belief that att is trying to coerce me to change browsers so they can spy on me

Kind of a combination 'Browse/Download problem. This morning on rising, 07/11/25, Claude.ai's html artifacts quit loading on Firefox. Doesn't matter whether I'm on laptop Macbook Pro or iMac...or iPhone...but it loads in Safari and Google Chrome? Site is fine...document artifacts are fine...but html sits with spinning wheel?

I have loaded Messenger onto my new computer as well as Firefox. When I go to Messenger the Voice and Video icons at the top right are greyed and when hovering over the icons, I get a message that video calling etc is not supported. i had no trouble on my other computer but am not sure how to activate the video and voice options. Can you please help me solve this issue. Thank you

Hi,

Whenever I try to watch videos on Anime Slayer APK in Firefox, I get a message saying the browser is “unsupported” or the video just won’t play. I’m using the latest version of Firefox on Windows, and I’ve already cleared my cache and disabled extensions, but the issue persists.

Interestingly, the same videos work fine in Chrome and Edge — so it seems like a Firefox-specific problem.

Is there some setting or add-on I need to enable to make it work? Or is this a known compatibility issue with certain websites?

Thanks for any help you can provide — I’d rather not switch browsers if I can avoid it.

Hello,

Not sure if posted under the right section.

Recently started having an issue trying to sign in to Microsoft Outlook (formally Hotmail) Web. I don't recall any changes i made or updates.

When i try to sign in, it opens a new tab and takes me back to the sign in page. This just continues.

Tried using MS Edge and don't have the issue.

So far tried Safe Mode which disabled add-ons, which are currently Add Block plus, and New Tab Override and the issue remains. Not sure if i tried the refresh option but i think it removes the extensions which is not the end of the world.

Added a few images, one shows duplicate tabs, which will continue

Firefox version 140.0.4 (64-bit)

Any ideas whats going

Thanks

Hello! I cannot edit our Weebly-hosted website. Firefox will not load the editor, apparently because of embedding issues.

I've tried a new tab, a new window, the private browser, and another browser, all with the same outcome, which leads me to believe that Firefox and Weebly need to have a discussion to fix this. I've also Weebly to the tracking exceptions, even though I don't think that's the issue here.

If, however, there is something I can do, please let me know.

Thank you for any help - I need to edit our website!