Firefox Community Forum

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!

Until a few months ago, I was able to turn off the underlining of URLs in web pages that I create. But within the last few months, all URLs appear as underlined, even in documents where they had NOT been underlined a few months ago. I am using the text-decoration setting to control this aspect. Look at page https://www.w3schools.com/CSS/tryit.asp?filename=trycss_link2 in the Edge browser, and see the "This link changes text-decoration" change between underlined and not as the cursor is moved on and off of that sentence in the middle box. Now look at the above page in latest Firefox. Moving the cursor on and off of the "This link changes text-decoration" sentence causes NO change to that sentence -- it always is underlined.

I refer to the w3schools.com website when I wish to learn about a new-to-me feature, and I have found their site to be accurate in the past.

We recently had an update on our printer drivers and somehow this has swapped settings from the previous system print dialogue to "Firefox - Print". The Firefox print dialogue does not have print preview and I need to be able to see a print preview. I've noticed that this was an issue in the past and people have solved it by going into about:config and setting print.tab_modal.enabled to false, but this hasn't worked for me. I am asking this question because if I can't find a solution I will have to switch to Chrome so I can see a print preview and I would rather not. If there is another way to force the system print dialogue instead of Firefox, please let me know.

I'm using Windowa 11. When I click on a link I want it to open in a fresh tab/page, but it opens on the current page instead. Firefox used to do this: how can I set it up again?

Hello,

I had been using Firefox as my default browser for a few years ... around 4 weeks ago i had some updates on my work's laptop and somehow i have lost my saved passwords for websites that i use regurlarly.

is there a way of accessing them again ?

Kind Regards

Jon-Paul

I need the support of FIrefox for Small Business compatible w/Android phone/Windows 11and provide VPN

The whole this week I have been dealing that Firefox fixed my issues and next day all settings went back as Google and Firefox is blocked or not longer providing me my request because of Google. I want to substitute Google for Firefox...I need an stronger help

When I drag a URL from the browser to the desktop, clicking on it triggers a prompt, saying "Do you want to open this file". If I look at the general tab in the properties of the link, it says "This file came from another computer and might be blocked to help protect this computer". This happens on both of my windows 10 computers since they upgraded to the latest version of Firefox (153.0.1.) I need to check the "unblock" option in the link properties to unblock the link. This does not occur with other browsers.

Hiii, I am using Floorp 12.16.3@153.0 on Debian 13 with KDE Plasma. Since the latest update, navigation from Floorp’s Private Container no longer stays inside the container.

Steps to reproduce:

1. Open a new tab in Floorp’s Private Container. 2. Type either a URL or a search query in the address bar. 3. Press Enter or click the arrow button. 4. Instead of loading the address in the current container tab, the browser creates a new regular tab outside the container.

The new tab does not show the container indicator and uses my normal browsing cookies. However, clicking one of the shortcuts displayed on the new-tab page correctly loads the website inside the Private Container.

I have already tried the following:

• Confirmed that `browser.urlbar.openintab` is set to `false`.
• Confirmed that `browser.search.openintab` is set to `false`.
• Restarted the browser.
• Disabled Floorp Start.
• Opened `https://example.com` inside the Private Container and then entered another URL or search query in the address bar. It still opened a new regular tab.
• Tested by pressing only Enter, without Alt or any other modifier key.

Expected behavior: entering a URL or search query should navigate within the current Private Container tab.

Actual behavior: a new regular, non-container tab is created.

This previously worked correctly and appears to have started after updating to Floorp 12.16.3, based on Firefox 153. Is this related to a change in Firefox 153’s container behavior, or is it likely to be a Floorp-specific bug? Please help, I'm a huge floorp fan :(

Every time I select Gmail on Firefox page, it requires me to sign in with a code. I have selected 'Strict' for browser privacy and 'Clear history after closing Firefox'... plus a number of other settings. I then get a notice of someone signing into my account each time, as does the person who I use as a backup to my account. I'd like not to go through that each time I access my Gmail account.

Thanks for the help.

Dave

duplicate of /questions/1584929 thread

Does the latest Firefox version have an IP Address? Possibly 150.1.2?

Every thing will be working fine? And then I click on something, and it takes a long time. And then at the top of my prompt, it says Mozilla firefox is not responding. I've been dealing with this for some time now. You can't figure it out. This is happening on my computer. Also I would update it the program and the very next day.There's a prompt asking me to upload again. I upgrade, and then I still get the same thing.Mazilla is not responding.