I-Firefox Community Forum

Since latest upgrade (1/16/2026) I cannot log in to Outlook email. This is specific to Firefox 147.0.1 (Chrome and Pop Peeper logins to Outlook work fine). I tried clearing cache, updating, restarting, rebooting, trouble-shooting mode, private window etc. to no avail. I get 400 error from Outlook.

Hi,

eine Internetseite, die ich öfter aufrufen möchte, ergibt o.g. Fehlermedung mit der Ergänzung: "Dieses Problem kann manchmal auftreten, wenn Cookies deaktiviert oder abgelehnt werden." Ich muss dann leider zu Edge wechseln, da funktioniert sie.

keine Angst, Seite geht zu Mercedes Fzg-Angebote:

https://members.mercedes-benz.de/portal/pool/mailReminderDeepLinks.html?id=618038&ref=external&fkey=-1856176&ct=3&hash=B1gBJW79YrMPgoCrAAANHA

I can no longer the the "Fry's digital coupons". When I go online to Fry's and click on "Fry's digital coupons" it always says that "there are no coupons available, try again later". When I keep retrying it then says "you are not authorized to on this page." And the Fry's customer service always says it's my browser contact that is the problem.

Can you help me?

I cannot access Fry's digital coupons - it always says: no coupons available try again later. Fry's customer service says it is my server not Fry's that is the problem.

Can you help?

Trying to access search Home Depot, Lowes, Tractor Supply gives errors. Works with Chrome. Started about 2 weeks ago or so. I use Starlink, no VPN, tried disabling Ad Blocker, Clearing cache for Lowes, no Add ons, but still doesn't help.

Error msg from Tractor Supply is: Access Denied You don't have permission to access "http://www.tractorsupply.com/tsc/catalog/lawn-garden?" on this server.

Reference #18.b1560e17.1773796157.35d73adf

https://errors.edgesuite.net/18.b1560e17.1773796157.35d73adf

Hello,

Almost all of the time, my I experience no issues with firefox. However, any time I try to open google products like google docs and google sheets, I experience a lot of lag. It takes up to a minute for the page to load, but once it does, it functions perfectly fine. I've never experienced this with any other websites. I don't think it is because of the size of the files, because the problem occurs even when opening new documents with no data in them.

Thanks for your help.

I cannot login into Kick.com, is it because am on Windows 10? If i use any other browser, it works fine no problems!! (the error it gives me is attached)

Starting at 148 if a user is using Firefox and attempts to log into our MS RDP Application server using HTML, they can log in, but when they select an application, they get stuck at the loading screen with no progression. If they download the RDP file direct it works fine. It's only when using the HTML RDP website with Firefox.

Things we've tried

• We verified it began with 148.0.
• We've tested on multiple devices across multiple networks with multiple users.
• We've tried fresh installs and we've tried without any add-ons.
• We do have Duo securing that server, but I tested a user under bypass and it went right through.
• All other browsers work fine.

My son tried to voicemail me on Messenger but it said this browser does not support voicecalling. I have used this in the past, still on Firefox. I used to get note that a call was coming ans option to connect or discard. Now there is no option to connect. What can I do to get this service back?

In their info Google say the CSE (Client Side Encryption) isn't up to date and won't work. My About Firefox link tells me I am up to date.

Does anyone know what is going on here and how it can be fixed please?

I am encountering more and more websites with problems they attribute to Firefox. Many of them recommend using Chrome or Edge and some insist upon it or they will no longer support problems. Direct TV will no longer work with Firefox at all and they will not fix it. Several of my other regular websites will work partially, but have pages that simply will not work with Firefox. I have resisted using Chrome or Edge for years but it is getting harder and harder to do as on line systems continue to have problems with Firefox and their only suggestion is to use Chrome (which works when Firefox doesn't). Any ideas/suggestions?

I am attempting to access a website https://my.calbrightcollege.edu/ however when i attempt to sign in i get kicked out with the message below.

Something doesn't look right!

Refresh the page to reload the student portal.

Or contact support at 1-833-956-0225 or email us at success@calbright.org.

I reached out and was advised could be something wrong with the software however I believe I have the latest software as i just downloaded the browser today. I am also able to access the same site on my phone and my IPAD not sure why it wont work here.

Hello, i let called it very long terms Firefox user i've been using Firefox to livestream especially on this website : www.showroom-live.com

somehow about since 3 months ago i believe (or start at 2026) suddenly i can't stream on firefox again but all other browser that i tested are worked just fine

it gave blackscreen like ss that i attached. even tried on fresh installed Firefox for android too

to be honest i love feature of firefox that i can pop-out PIP windows all more than 1 and even gave full screen of that PIP

i tried every suggest that appeared on website like Disable Enhanced Tracking Protection, turning off hardware acceleration, clear cookies, autoplay are on ALLOW, doing safemode check also make that black screen, even check about:config media.mediasource.enabled (set to true),DRM ON

my system : AMD 7600x, memory 16GB,GPU : RTX3060, Windows 11

thanks before i hope i got solution

I'm getting the message "It looks like you have a browser extension that might be interfering with Microsoft Advertising tools. Please disable this extension." I don't have any extensions. I can't use their site until this is fixed. I chatted with Microsoft and they directed me to Firefox.

After clearing Browsing data, therefore Loging out of twitch etc., i now constantly get the error "Browser not supported" on attempted login

Other Browsers (Chrome) work fine and ive already tried deleting Extensions and reinstalling the Browser to no avail

here's the error messages that come up

any help would be appreciated

I have emptied cache, reset everything and I still get

Access Denied You don't have permission to access "http://www.cabelas.com/home" on this server.

Reference #18.cdd11102.1773077261.fdc87252

https://errors.edgesuite.net/18.cdd11102.1773077261.fdc87252

This is from Cabelas.com but I am getting it more and more from other web sites. American Airlines, Delta.com, etc. I accessed the help and did all the steps about fingerprinting and turning off "enhanced tracking protection" and nothing helps. Any ideas? Don't like the idea of using Chrome or Edge, but Firefox is almost unusable for me now. If I have to keep using another browser for the sites, may as well just use that one only.