Firefox Community Forum

Hello all! In this Firefox on Windows 11 setup I only have a few add-ons installed: Bitwarden ClearURLs Cookie AutoDelete DecentralEyes I don't care about Cookies PrivacyBadger uBlockOrigin

I sometimes have an issue: when I try to pay for a product or service, I end up in an error page and the only way to continue is by using another browser. I think that the problem is that my browser blocks pop-up windows. Which of the extensions does that? How can I get myself out of the need to use other browsers?

Thank in advance!

Hi Folks - Per attached image, in the last few weeks (Dec.2025+ mainly), I get blocked from accessing web.Whatsapp.com on my Lenovo.X1 (Windows) laptop. It may work eventually but the block stays a long time etc.

Any ideas why & a fix much appreciated :)

Thx,

POB

Edge" (or some Microsoft product) repeatedly tries to preempt Firefox, my default browser, loading my default page: Yahoo.mail. It happens inconsistently, and in different manners, hard to describe. It happened on my desktop and also on my laptop. It seems very aggressive, but right now the start-up was normal

After updating to latest version of Firefox, my request to go to website is showing "Access Denied" (e.g. www.aa.com)

I can't get into my Yahoo Email account, and keep getting, 'try again' which I've done repeatedly, then 'check internet connection' which seems to be fine, then to 'make sure Fox Fire has permission to enter', which until today I've thought they have always had because I've never had this problem before, so what could problem be today, and how do I fix it?

Hi, my location is Venezuela, and seems that I'm being blocked somewhere... I just want to confirm whether this is something on Mozilla's end (considering that their headquarters are in the US), or something on my government's end (since the ISP often blocks websites on orders from the state).

I can't sync my account or log in because of this, and generally, wherever the block comes from, they rarely give any warning. The main page loads normally; it's only the subdomains that are blocked, as far as I can see. For the record, this happens in Firefox for Desktop, and for Android too, wherever I'm on my home, using mobile data or using my office WiFi. This is not a browser error, in the capture u can see that the domains are solved correctly (even using the ISP's DNS), but u can't ping on the IP unless u turn on the VPN.

All Google services work fine for me, and I can't use a VPN all the time, so I'll have to switch to some chromium browser if this goes on too long (even if I don't want to).

I cannot sign into Discover Card when I use FireFox. I talked to Discover Card about it. They say the most frequent reason it happens is because Discover Card is not on your safe list. I tried signing in on my other PCs with a Ubuntu OS and their browser Opera works fine on signing me in. Within the last two weeks I installed Mint on two of my PCs. works great except for not being able to sign in to Discover Card. I am not having that problem on any other sites. I doubt if my cache is full as my usage being new OS has been minimal. I just tried signiing in with this PC after installing Mint yesterday. I get the same message

"We're sorry. Your request cannot be completed at this time. We sincerely apologize for this inconvenience and are working to resolve this issue soon."

Discover wants to blame Firefox. Personally I think It has to do within the Mozilla VPN. I say that because I often had the same problem when I used McAfee's VPN. Discover maintains it has nothing to do with VPNs and it is a trust issue.

Eventually I want to replace Ubuntu with Mint. But I cannot until this problem is fixed. Opera is also running a VPN when I sign in so this would support Discover Cards theory about Firefox not having Discover on a safe list. I think they have it wrong though. If your site is blocked you are not on Discover's safe list. I wish we could get a meeting of the two minds instead of me trapped in the middle. Hope this helps.

i HAVE SET FIREFOX AS MY DEFAULT BROWSER, BUT WHEN I TRY TO OPEN IT MICROSOFT BING POPS UP. THIS INFURIATES ME AND I WANT TO KNOW HOW TO STOP IT. IN THE CONTROL PANEL IT WILL ALSO NOT ALLOW ME TO REMOVE MICROSOFT EDGE.

Error code 403

Error ID IjcpdgAAAAAAAAAAMfV4Nb~F

My IP is 49.245.120.53

I was trying to reach this page (a government service page), https://eservices.ica.gov.sg/ipapples/index.xhtml ,

I got this response: "Although the request was valid, the page/resource you are trying to reach is absolutely forbidden for some reason."

then I got this: "The web server thinks that the HTTP data stream sent by the web browser was correct, but access to the resource identified by the URL is forbidden for some reason. This is highly likely due to the reason that your recent action or browser behavior has been flagged as suspicious, either you have failed all authentication tests, including CAPTCHA, or performed an action on a protected application deemed illegal or malicious by the Web Application Firewall (WAF). Access to the requested page/resource is therefore blocked. If the source IP is on the blacklist, you will keep seeing this page until being removed from the blacklist. "

then it advised: "Clear your browser’s cache and try again. If you believe this to be erroneous, please contact the site owner citing the Event ID indicated above and provide a description of what you were doing before you were denied access."

Now, acting upon that advice, I've cleared my Firefox browser cache, but problem remains.

So, may I request that Mozilla remove (or a kind person help me to remove) my IP from blacklist? Thank you.

I am unable to open links to various sites, like OnShape, Banqiue of Montreal, Banque Laurentien and more... Any security that bvlocking access??? I am running Fox from Linux over Window 10. Says You have not granted any special permission to this site.../.

Help - any hint?

Martin

Hello. I did not receive an answer to my last help request. A Block Ad does not allow me to access this site: https://www.tempo.pt/lisboa.htm?utm_source=newsletter&utm_medium=email#-0eebc5457c97ef8bca0b518ed4194951 I need some help, please. Thank you.

duplicate of /questions/1555123 thread

Every time I do a search it takes me to a virus warning anad won't go further.