Diễn đàn hỗ trợ Firefox

Whenever I try to access the Powerball website I get the following response -

The request is blocked. 20260116T144515Z-17584c64c9f58vrnhC1MIAm1t80000000t4g00000000rcec

I have no issue with other browsers.

Thanks Gary

Just recently I am no longer able to login to the discover.com site in private mode. It still works in regular mode. I'm using this on a desktop, not the discover app. I spoke to their tech support and tried to do a login while on the phone. They told me nothing was coming through on their end. So, what changed and how can I fix it please?

Firefox just updated, now getting ACCESS DENIED at common sites, Home Depot, JC Penney, American Airlines, United Airlines and I don't know how many more.

How do I fix this or go back to previous versions of Firefox?

Or just move to Google?

Hi

I need to block some sites through the OS Hosts file, Other browsers ( Edge, Chrome, .. ) are honoring the HOSTS file rules but Firefox bypassing them !! , I disabled the DNSOverHTTPS and all other available suggestion and options but still not honoring the hosts file !

as you can see in the attached file, the Firefox DNS Section is now blank ! but still doesn't follow the OS host file

I even made a custom policy file but still doesn't work, these are the things I disabled but still not working :

{

 "policies": {
   "DNSOverHTTPS": {
     "Enabled": false,
     "Locked": true
   },
   "Preferences": {
     "network.trr.mode": {
       "Value": 5,
       "Status": "locked"
     },
     "network.dns.native_https_query": {
       "Value": false,
       "Status": "locked"
     },
     "network.trr.uri": {
       "Value": "",
       "Status": "locked"
     },
     "network.trr.bootstrapAddress": {
       "Value": "",
       "Status": "locked"
     },
     "network.trr.exclude-etc-hosts": {
       "Value": true,
       "Status": "locked"
     },
     "network.dnsCacheEntries": {
       "Value": 0,
       "Status": "locked"
     },
     "network.dns.disableIPv6": {
       "Value": true,
       "Status": "locked"
     },
     "browser.fixup.dns_first_for_single_words": {
       "Value": true,
       "Status": "locked"
     },
     "keyword.enabled": {
       "Value": false,
       "Status": "locked"
     }
   }
 }

}

I am unable to load my Facebook . have Googled the problem but am anable to perform most of their advice. I am running W11 and have emptied the cache but this didn't fix the problem. Please help !!

Why suddenly and for no reason after years and years on the same computer am I not able to access espnaudio.espn.com Makes no sense!

This browser is not letting me connect with my pension website. It allows me to sign in, but the pages with my account are not showing up. How do I get it to recognize the website as safe?

websites are being blocked when I click on links from my email account and I don't know why but I also want it stopped the websites are Stage32.com and https://course.fp-platform.online/learn/hRpTYcFi2UyZKzLm2gaOHg/theory

I got to PIA's website, i navigate to the download vpn section and from there, firefox blocks the connection and says the server is offline, Ive just done this chrome and edge with no issue, my issue is that its not only this site itll do this on.

Hello,

When I try to visit a specific journal site that requires authentication, the browser automatically redirects me to an authentication page that I have used before. This is very annoying because every time I click a link to the journal, I’m sent to the other portal and can’t access the article. I want to stress that I haven’t installed any add‑on that would cause this redirection. I think I did that myself manually but I have no idea how. I’ve already deleted the cookies for both sites, but nothing has changed. I hope that makes sense, it’s a bit difficult to explain.

I'm using firefox 147.0, on mac Tahoe 26.2.

Thanks for the help !

Just seemingly out of the blue I started getting Firefox captive portal warnings. Most websites load normally but if it's a new site i.e. one I ahven't visited in a while I get the "you must log into this netrwork before you an access the internet" message. I am and have only and always been on my home wifi with this computer, it's a laptop but has never been out of my house. Forefox seems slow lately and I keep getting this message. Other browsers work fine by the way.

I have tried endlessly to go onto Anesco website, it comes up with Forbidden 404 on all their sites, my solar system is managed by them but I cannot access the sites to contact them anyone got any ideas please, https://anesco.com/

I am a business owner and I need to log into united health care provider portal. Mozilla will not allow me to access. I'm using this link: https://secure.uhcprovider.com/ and Mozilla will not allow me to go further. This is causing work stoppage. Chat GPT says the link is secure. HELP! I need access so I can get paid.

From Chat GTP:

https://secure.uhcprovider.com/ I checked that exact URL, and here’s the key point:

👉 secure.uhcprovider.com is actually configured with HTTPS and a valid SSL certificate—so under normal conditions, your browser should show it as secure.

So if your browser is blocking it or labeling it “not secure,” the problem is almost certainly local (your device/network) rather than a new issue with UHC.

I am consistently receiving an "Access Denied - You don't have permission to access (names site specific URL) on this server" error message on several websites. -- Lowes.com, Homedepot.com, costco.com.

I can access the home page of the website, but whenever a tab on the home page is selected or a search done, the error message is received.

Have followed all help suggestions I can find. Cleared cache, cleared history, forgotten website, refreshed Firefox, run Firefox in safe mode. No impact on problem.

Help!!!!!

Thank you.