Showing questions for topic:

Firefox won't load specific sites

Hi, I'm having trouble accessing only certain sites via Firefox. I have already cleared my cache/cookies, etc. Firefox is up to date. Proxy settings are set to "Use syste… (read more)

Hi, I'm having trouble accessing only certain sites via Firefox. I have already cleared my cache/cookies, etc. Firefox is up to date. Proxy settings are set to "Use system proxy settings."

Following links from other sites sometimes (but not always) works, but typing in a URL or search term to the address bar results in an "Unable to connect" notice.

Examples of sites: Working: google.com instagram.com mozilla.org (main site works fine, support.mozilla.org loads only as an unformatted list of links) netflix.com

Not working: usps.com goodreads.com storygraph.com firefox.com duckduckgo.com oregonwalks.org ucla.edu

Thanks for your help!

Open 4

My firefox screen is frozen by a message from "systemsecurity-pro" that my iphone has been hacked. I think this is a scam and don't want to tap the "OK" button.

My firefox screen on my iphone 15 is frozen by a message from "systemsecurity-pro" that my iphone has been hacked. I think this is a scam and don't want to tap the "OK" … (read more)

My firefox screen on my iphone 15 is frozen by a message from "systemsecurity-pro" that my iphone has been hacked. I think this is a scam and don't want to tap the "OK" button. What should I do?

Open 1

Cannot access 1 specific Website

Hi, My Mum who is tech illiterate has recent encountered a problem while browsing- She is unable https://direct.asda.com/george/clothing/10,default,sc.html and only this… (read more)

Hi, My Mum who is tech illiterate has recent encountered a problem while browsing-

She is unable https://direct.asda.com/george/clothing/10,default,sc.html

and only this site, she can do so in private mode and on other browsers, I have tried disabling her 2 extentions, I have cleared her cookies, cache and browsing history for Asda Direct but it still comes up blank. She does not use a VPN, she is in the UK.

The only thing I could suspect is if Firefox's VPN is somehow activating just for that one site but I can't see it being on, I only say this because I have to turn off my VPN on my own device to access this site.

Any help?

Open 1

FIREFOX BLOCKED PAGES I KNOW ARE OK

blocking pages https://www.ui-deref.com/r/?to=https://data.notification-htp.dish.com/ee/v1/click%3Fparams%3Dv1.10COjSKNA5PrObazTisehHaAu92BIO9JYdMGyGMpqr4WinxM1dh598psfuB… (read more)

Open 5 1

"Access denied" error on specific website

I am running Firefox version 153.0.1 on a 64bit install of Windows 11. A few days ago I had to factory reset my computer, including a clean Windows install. Since then, … (read more)

I am running Firefox version 153.0.1 on a 64bit install of Windows 11.

A few days ago I had to factory reset my computer, including a clean Windows install. Since then, when attempting to access https://vodafone.cz/muj/prihlaseni, I get an Imperva Error 15 "Access Denied" error screen - screenshot attached here. Clicking the Imperva logo on the bottom of the error message leads to https://www.imperva.com/why-am-i-seeing-this-page/?src=23.

I was able to access the site in the past, most recently on July 8, 2026 - this would have been Firefox version 152.0.5.

This error persists in troubleshooting mode but not in private/anonymous (with or without extensions enabled), nor does it appear in Microsoft Edge or Firefox on Adroid.

Clearing cookies and cache did not help - in fact the error first showed up on a clean install of Firefox, when there weren't any cookies or cache stored yet. I've tried different DNS over HTTPS settings and listing the site as an exception in settings, but none of this made a difference. Enabling Firefox's built in VPN also made no difference, regardless of the selected location.

I found a recent post (https://support.mozilla.org/en-US/questions/1588627) describing a similar issue on a different website and tried the suggestion listed there to try a fresh profile - this seemed to work, but within a couple of minutes of browsing the error message returned. I've even reinstalled Firefox entirely, but this too did not help for long.

Interestingly enough, the error message lists a proxy IP address (not blacked out on the screenshot) despite the fact that I am not using a proxy.

The website provider's tech support claims this is an issue on the user side, not theirs - they have not been able to replicate the issue.

Is there anything I'm missing that would explain why this is happening?

Thanks!

Solved 3

It appears every time I click on something, I get a block no matter what it is.

What can I do to see these blocked items? This happens to everything I click on. Pictures or articles on clothing, political issues, absolutely every thing that has an … (read more)

What can I do to see these blocked items? This happens to everything I click on. Pictures or articles on clothing, political issues, absolutely every thing that has an option to check to see more. This is rather recently happening. I'm wondering if Yahoo has done something since their "New" but not better version of email.

Open 1

Is Mozilla Firefox Blocking SpamTitan01.isomedia.com from my computer?

As of about last Thursday, I have been unable to access my Isomedia.com SpamTitan01 account. I usually have a trove of spam messages, which I look at and delete, except … (read more)

As of about last Thursday, I have been unable to access my Isomedia.com SpamTitan01 account. I usually have a trove of spam messages, which I look at and delete, except for the one or two that are real emails. For the last 5 days My Titan vault is empty, though it is trying to retrieve data. My address is [redacted] @pioneernet.net Could it be that a Firefox update is preventing me from access?

Nancy Moore

Solved 1

I am not using a VPN or proxy, but I keep getting the "Using Proxy/VPN is forbidden" error. Please help me resolve this issue. ی

Hello, I am trying to create and use my account, but I keep getting the message "Using Proxy/VPN is forbidden." I am not using any VPN or proxy. I have already checked my… (read more)

Hello, I am trying to create and use my account, but I keep getting the message "Using Proxy/VPN is forbidden." I am not using any VPN or proxy. I have already checked my computer and internet connection, but the issue still remains. Please review my account and help me resolve this problem. Thank yoیہ

Open 1

I am using Firefox to conduct Securus Jpay video connect visits and recently I can't join session because the downloaded VRE client won't loadn't load VRE client won't loadvideo visits

I am using Firefox to conduct Securus Jpay video connect visits and I have been unable to join a scheduled session due to what I believe is failure of the downloaded VRE … (read more)

I am using Firefox to conduct Securus Jpay video connect visits and I have been unable to join a scheduled session due to what I believe is failure of the downloaded VRE client to load. When I do a precall test, everything, including the VRE client works correctly and I'm told that I will be able to run a session successfully. However, just as the video connect visit is about to begin, I am told to download the VRE client to continue. I have don't this multiple times, deleting each prior download and re-doing the download +installation. It's been very frustrating and I've tried everything. Up until about 2 weeks ago, everything was working smoothly. I'm stumped. Please help. thank you.

Lynn Kerwin

Open 20

Warum blockt Firfox/verschleiert meinen Zugang und verhindert Verbindung für einen externen Benutzerzugriff ?

Hallo Firefox Team Ich habe ein Verbindungsproblem verursacht durch Firefox . Es ist ein Problem bei Abschluss der OSIP Registration aufgetreten nach ich mich mit den iPh… (read more)

Hallo Firefox Team

Ich habe ein Verbindungsproblem verursacht durch Firefox . Es ist ein Problem bei Abschluss der OSIP Registration aufgetreten nach ich mich mit den iPhone identiviziert, einem Account angelegt hatte und dieser bestätigt wurde. Leider verweigert die Seite ideas.esa.int den Externen Benutzerzugriff weil dieser verschleiert ist? Ein neuen Registrationsvorgang (unverschleiert) mit neuen Account E-mailadresse angelegt das gleiche Problem , kein Kontakt bzw. Ansprechpartner.

Mit freundlichen Grüßen Rolf Nieske

Solved 2