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When I open Firefox I get a large number of warnings. I have run three separate scans (Norton, Malwarebytes, Spybot S&D. I have then restarted my PC and these messages re-appear.

The essages state "Warning: Virus detected" "System Alert!" "Trojan Detected!

The messages try to lead me to watrixa.co.in to Scan & fix or remove the viruses. It will not let me close these warnings.

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 I open my website, pvamarkets.com, I see a Cloudflare page that says:

“Suspected Malware — This website has been reported for potentially distributing malware.”

This is a legitimate e-commerce website. After the warning appeared, we completed a full server-side security check. We checked the website files, database, cron jobs, access logs, error logs, and file-delivery system. We did not find malware, executable files, unauthorized code, or signs of a server compromise.

Our website only delivers plain text files to customers. It does not host or distribute Windows executable files.

I understand that the warning page is branded by Cloudflare, but I am posting here to confirm the following:

Is this warning generated or influenced by Firefox or Mozilla Safe Browsing? Can Firefox cache an old security warning after Cloudflare removes it? Is there any Firefox security report or blocklist entry for this domain? What steps should a website owner take to confirm that Firefox does not classify the domain as malicious?

The warning appears before visitors can access the website and causes serious trust and access problems.

I have attached a screenshot of the warning page.

I log into a secure web account, use user ID and password, go through 3 rd party verification and gain access.

When I logout it takes back to the sites Home page.

If I decide to login again by using the login icon the website immediately logs me backin with No requirement for user ID, Password or 3 rd party verification.

I am trying to determine is Firefox holding this information (User ID, Password and Third party verification code) and auto logging me in or have I not really logged out.

If I completely close Firefox this does not occur.

My Firefox on iPhone has a malware that pops up a box urging me to call a phone number (which I won’t do) about a payment. It has Cancel and Ok buttons, both of which trigger another box from the dialer containing the same phone number. I cannot get to the FF settings or escape from that page because the pop ups immediately come back and reload the page. The site looks like appleinstantsupportpays[.]z13[.]web[.]core[.]windows[.]net. All of the online advice relates to FF on Windows or Android. How do I clear the malware from my phone?

I have an old Mac desktop computer and use firefox as my browser. I go to hotmail and click on and up comes my inbox. I click on an item but nothing opens. then I get a message up top saying firefox prevented the opening of one or more pop up windows. I have changed my password with microsoft. That has not improved things.

Dear Mozilla Support,

I am experiencing a serious issue with Firefox on my iPhone. The app activates normally, but after a few hours it becomes inactive on its own, and my browsing data is no longer saved. I believe this may be related to a security or phishing issue.

My cybersecurity services (including McAfee and Bitdefender) have notified me of potential phishing attempts, data access risks, and suspicious browser activity. I have reported these issues to my security providers, and they have opened case IDs to investigate further:

- McAfee Case ID: 03203372 - Bitdefender Reference: 1010231778

Due to these ongoing issues, I would like your team to check whether there’s any unauthorized activity linked to my Firefox account or app. I rely on Firefox daily and need this issue resolved as soon as possible for safe browsing.

If possible, I would also like to request that my Firefox browsing profile be locked or protected against unauthorized tampering, auto-deactivation, or interference by malicious software or attackers.

Please let me know what steps I should take, or if you need any further information from me.

Sincerely, Mod's note: PII removed

I keep getting a notice from Google to do a scan because I have been hacked and have a virus. I have done a Mozilla scan that reports no problem. What is going on? The message wants me to install a security app I am not familiar with.

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.

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.

Copilot is a virus effecting facebook, market place, openoffice, Firefox

   settings 

apps installed apps turn off copilot running in background turn off copilot run at startup uninstall is also an option I'm thinking of.

I attempted to put in an address of what I thought was a website today on mozilla. I soon found out that it was not available or a proper website.

Now I am getting alarming notices with heading Mozilla Firefox all via what looks like an Indian website, saying 1. Click to secure your 2. Trojan detected Fix it now. 3. Critical Error. Click here to remove them.

I have not clicked on any part apart from the x top right to remove the notifications. I can send photos of them

I have scanned with my Windows Security repeatedly and nothing.

Max

PS. The messages are obstinate to remove and it takes effort to x them.

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]