Diễn đàn hỗ trợ Firefox

All of a sudden I am finding that Firefox will not connect me to certain websites such as Walmart, Doordash and even Firefox itself. It looks like it's trying to but it just gets stuck. What's causing this and how do I fix it?

Mozilla Firefox desktop : As at evening of 22nd May 2026, UK time, Firefox will not interface to Aol email. Gives " We can’t connect to the server at mail.aol.com ". Connection was fine earlier today, & as I know of no Mozilla changes, suspect this is a change at the AOL end. no longer permitting access to Firefox.  ?? Other browsers do connect, hence not an AOL outage.

After i installed firefox net jitter somehow appeared in my cs2. every time i play jitter is jumping randomly. Can yall somehow fix this i really enjoy using this browser but i just cant play with it running in the background((((

Каждый раз при попытке найти что-либо в интернете, выходит ошибка (фото прикрепил), очищал DNS и подключался к другому WIFI - браузер не работает. Помогите пожалуйста

Hey,

after looking through many Forums and solutions on the internet, nothing can resolve my issue, so i hope this one can help. I just switched to Firefox and have the reaccuring problem, that i cannot load sites, that are located in my local network (e.g. homeassistant.local; 192.168.8.265:2283).

I always get a "server not found" error from firefox and the certificate information, that i am communicating through an unsecured connection (haha, yes good joke firefox. I know my local services do not all have an SSL certificate.) I already tried altering settings for Proxy, DNS over https, MACos Safety settings but nothing helps. I am jsut looking for that one "trust this domain" button, that i get on 'ALL OTHER BROWSERS like Chrome, Safari and Edge...

P.S.: All the services are up and running and i can reach them through any other Browser.

Without any change made on my part, effective May 18, have been denied access to the web. This even includes long time bookmarked important investing/banking, etc. Have checked macOS Privacy & Security settings but not aware of any blocking there. Has recent Firefox update changed things? I have not updated Firefox updates for some time.

I installed firefox a week ago, now in the middle of creating a x account I no longer can reach the internet on this browser, edge works, chrome works. IT SAYS AT THE TOP YOU MUST LOG IN T THIS NETWORK BEFORE YOU CAN AS THE INTERNET. IT LET ME CREATE 1/2 OF A X ACCOUNT.

Is this the reason millions of people are leaving firefox as AI has indicated? The fix is apparently try this for 2 pages. Please create a trouble shooting tool within firefox to fix this junk and I am deleting firefox, don't worry I will reload it 1 - 5 years and try again as I did 1 -5 years in the past.

My hotspot is constantly disconnected by Firefox. I have the latest browser. And if this cant be sorted Ill have to go back to google. Its a nighmare. Firefox keeps giving me a wired connection

I use Firefox as my default browser. When I click on a link in my apple mail it doesn't appear but when I right click to check the Firefox icon, it shows that a window should be open (call it mystery window). In the photo it's the "Settings". I cannot seem to access it. (It used to be that if I clicked it, it would open.) If I right click the icon I can open a new Firefox window but the one I originally tried to open still does not appear. That's how I opened this page. If I've opened a new window and I right click and select "Show all Windows" I can see the original window but I still cannot access it. I've tried quitting Firefox and shutting down my computer but when I restart my computer the Firefox icon still shows that the mystery window should be open. Still cannot access it.

This is a fairly new problem that started sometime in the last few months. i have an Apple computer.

I was able to use Firefox web browser earlier today, but after trying to log in to Facebook, which failed, my account was no longer accessible, I saw an indication that my account was not connected. Do I need to update my software for Firefox. I've been having difficulties logging in to Facebook.

I have noai.duckduckgo.com set as my default search engine. Almost always (but not quite every time) when I type anything into the address/search bar, I get a page with a "Server Not Found" error. (See attached image.) Refreshing the page immediately brings up the results without issue, but I consistently get the error first.

Oddly, if I go into settings and switch to a different search engine and then switch back to duckduckgo, the issue will briefly resolve and it'll work fine for a short while... and then I start getting the error again.

Is there any way to fix this?

I open up firefox and the message appears - you must be signed into this network in order to access the internet. BUT i can use the internet. This is not a problem on a W10 machine which I also use.

I have the latest version 151.0.2 (64-bit), always update. It's terribly buggy now out of nowhere. Tabs won't connect to the internet after laptop wakes from sleep. All other browsers still do. If I close FF and reopen I lose ALL my tabs even though for decades I've had it set to reopen all tabs. What's up?

A user I am servicing uses Firefox every day. They are on Windows 11. Every afternoon (sometimes at other times), Firefox stops working and loses its internet connection (everything else on their computer continues to be connected). When they close and restart Firefox to reconnect, it then tells me the user that they are using an old profile and need to create a new one. They're able to re-log into their Firefox account, which eventually resyncs all their data, but they then have to re-sign into everything, which is a major inconvenience. The only workaround the I have found is to reinstall Firefox, ever time this happens which then allows the user to use all their settings until they have to repeat the process the next day (i.e., everything remains signed in and/or logging back in is easier than described above).

Here's some additional information and trouble testing we've conducted:

Uninstall and Reinstall of Fire fox

Check for updates (Updated to new version and still suffered the same issue)

Cleared cache and cookies

No extensions

Please if anyone has any advice or recommendations it would be greatly appreciated.

I made my post originally on the 3/9/26 but no one has gotten back to me, so I am creating another post.