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A while ago when using the setting firefox noticed that i was using a vpn and turned the settings off. At least that was what i believed. Turns out, that only works with browser vpn addons that use the firefox settings. But these addons do not use wireguard, but tls to encrypt your data. If i use a vpn, and want to use the dns settings provided by them, i have to turn of the feature the dns over https feature from firefox. I only want to use that feature, if im not "protected" by a vpn solution of my choice.

The attached pop up ad continues to present it self in spite of my selecting block pop-ups. I cannot find a setting to block the pop up depicted in the attached image. Assistance would be appreciated.

i am having pop-up messages that there are viruses on my computer causing security & privacy issues, your timely help required as my work using my computer is lingering on.

I just purchase Malwarebytes Standard plan to help strengthen the security of my laptop which runs on Windows 11 .After installing the standard plan, Malwarebytes recommended I install, for free, an add-on called Browser Guard for Firefox. However, Mozilla sent a cautionary statement: 'This add-on is not actively monitored for security by Mozilla. Make sure you trust it before installing.

Is the Malwarebytes Browser Guard for Firefox safe?

Hi,

Why private window is the same as general window browse? It should be different, yesterday was different, when I created a new account, this new private window change it to the public window, are they any bugs? Can you fix it? Thanks.

Seriously Mozilla.

First with ramming AI everywhere in Firefox, now a browser VPN, why?

I do not want a VPN the web browser that I didn't ask for or other features you think people need without asking.

Corporate and business users would not have a bar of this either.

Enough!

Remove this from Firefox please in the next release.

In the meantime, tell users how to disable this VPN via the Settings and "about:config" so this never gets turned on.

Hi,

I noticed that in the latest release (I tried both MacOS and Windows 11 ARM versions) that the "network.cookie.sameSite.laxByDefault" is no longer enabled, and cookies set by applications without specifying the flag, are not set with Lax and are sent in cross-origin requests. Could you clarify if this is intentional and why the change has been made?

Thanks

When the browser is open - whether with tabs or not - it disables NVIDIA ShadowPlay. The NVIDIA overlay says “a protected app is preventing desktop capture,” and I’d agree with that if it only happened when tabs with DRM content were open, but it happens even in an empty browser.

Hello This evening as I was going to pay for a book on a site well known to me, I notice that I don’t see a lock to the left of the address. I read your page 'Mixed content blocking in Firefox' after seeing that its little French sister was not up to date and it seems that it is the version of Firefox installed tonight that is behind this big change. Even my bank’s site no longer shows padlocks and it’s destabilizing. Why such a change without explanation??? I only read information about the split view in the same tab (which seems very useful) but nothing about this disappearance of the lock... Can you confirm that it is indeed the version from tonight 27/03/2026 that made this change at first glance worrying.

Thank you in advance and have a good day.

Some extensions I use have been updated and now ask permission to "Access your data for all websites." What is the scope of this access? Can an extension which facilitates video downloads see my bank password? Can it access data for sites in a different Firefox container? Can it access sites which I use in a different browser? Can it access data for sites which, on my system, are only available to a different user? Thanks for any clarification. [I am running Firefox 149.0 under Kubuntu 24.04]

Instead of returning directly to my desktop when I close Firefox, this website opens: https://www.websudoku.com/ and I then have to close that before I can see my desktop. I do not want this to happen!!!!! How can I stop it?

Is there any documented way our I.T department can disable the ability to connect to or even see the Firefox VPN that is being rolled out via group policy or another settings method? Firefox is a great asset for our agency but we cannot have users having the ability to bypass our web filtering. If there's not an option currently, could we have the IP's or the servers that it runs off of so we can manually block it in our firewall?

I'm sending this from my phone. My desktop FF (Win 10) suddenly displayed a black wireless globe type icon called Prox-Media pinned to my taskbar. I can't find the app on my system, though, but the full path leads it to a firefox.exe file. Before my brain kicked in, I'd clicked on the icon right after noticing it, and Firefox came up with the attached error message displayed.

"Prox-Media" comes up nowhere in my searches - not as legit, not as a virus - just no results. Can you help?

I have a paid AVG account and I ran a deep scan but it found nothing.

I had Credit card Ads before many times and I could at least block them and be able to get some peace but now they are using Firefox & Firefox is actually putting them in a place of being able to literally Stock me And message after message they use Firefox to get to me all day and night and I can't stop it it's been so brutal for me I already have been stocked by my ex boyfriend and it was so scary so horrible I have bad panic attacks and anxiety, PTSD, truly afraid and I can atleast be able to block them they get new # new w Everything by next day and I have to block them daily & sence getting Firefox I have just figured out it's Seriously @Firefox that's allowing and giving these horrible scammers & worst credit card companies saying whatever they want to mess with you on a daily bases & I just found out it's because of Firefox I can't block them and get any help they help these companies actually stock me worse then anyone or any place ever before and there supposed to be a security company to keep me safe my Google Reviews I have awards getting 100,000 views first month & awarded for people truly caring what I have to say and I can't let other wemon & victims be brutalized like I have been through the 1 company suppose to keep me safe it's heartbreaking and has effected me in such a bad way I'm scared and not okay now after what I been through in last 24 hrs even how could this be right or legal or okay at all

I recently opened Firefox to see a new flagged warning under my toolbar that says "The security sandbox is disabled. Your configuration is unsupported and less secure."

I have gone into about:config and adjusted every security.sandbox element to see if that would change anything; it did not.

I am running on Windows 11 Home so I cannot install or properly run Windows Sandbox.

I would either like a solution to enable the sandbox once again, or just remove the notification from the toolbar.

I need to install PKCS#11 modul on iMac (OS: Ventura 13.7.4) for signature authorization. I try: Settings-> Privacy and Security-> Certificates-> Security devices-> Load-> Modul filename: /Applications/CertiliaMiddleware.app/Contents/pkcs11/libCertiliaPkcs11.dylib , but I get an answer: "Unable to add modul". In order to install a certificate for signing with a card, I was informed that I need to install this modul first, but it doesn't work. What should I do? Thanks, Martina