Firefox Community Forum

The problem: You’re the administrator of your Windows 11 computer, but you can’t copy, rename, or change your browser’s data folders (Firefox, Brave, Chrome, Edge). Windows says “You require permission from [your own name]” or “Access denied.” Closing the browser doesn’t help, and the usual fixes for permission problems don’t work either.

The cause (in my case): It wasn’t Windows. My ESET antivirus (ESET Smart Security Premium) has a setting called “Enhanced data protection.” It’s meant to stop password-stealing programs from reading your browser’s data, but it also blocks you from copying or renaming those folders. Starting your computer in Safe Mode may also let you get around the block, since antivirus programs don’t fully load there.

The fix (ESET): 1. Open ESET and click “Setup” on the left. 2. Click “Advanced setup” at the bottom right. 3. On the left, click “Protections”, then “Browser protection”. 4. Find “Safe Banking & Browsing”, then the section called “Secured browser”. 5. Turn off “Enhanced data protection” and click OK. 6. Try copying or renaming your folder again. It worked for me right away. Afterward, turn the setting back on to stay protected. If you’d rather leave it on, ESET has a “Browser protection allowlist” where you can add programs you trust.

Using a different antivirus? Look in its settings for something about browser protection, banking protection, or protecting browser data. A similar feature may be doing the same thing, though I only confirmed this with ESET. Technical note for those who want it: I confirmed ESET was active by running “fltmc” in an elevated Command Prompt, which listed ESET’s file protection driver (“eamonm”). Another user on Microsoft’s support forum found the same cause with a Chrome profile.

See this post for screenshots of the problem: https://support.mozilla.org/en-US/questions/1528043

I've received notifications from Mozilla stating my Mozilla account was used to sign in. Info posted in email states it was Firefox on Windows 10. My city and state accurate. Day, date, and time is ok. I've been using windows 11 for some time now. How can i trust Mozilla, if they can not detect the right windows version?

Thanks. George K

I just got this email: Did you sign in to Firefox? Help us keep your account safe by approving your sign-in on: Firefox on Windows 10"

This is after setting FF as default again (3rd time today). Got into this problem trying to report that FF behaves differently when using W11 HOME vs PRO. Don't know when this started. This system has been a "home" system from day 1. When I go check defaults with W11, (only O/S on this laptop) it shows that FF is the default browser for many things.

But if I do an update, or have to do a reboot, first time started, it wants to be made the default *again*.

NOTE: Mozilla sent the above email to me that this is FF on Windows 10. This is W11 HOME, not 10.

Thank you for your attention to this matter.

Example email attached. Mozilla support emails say requests are coming from a windows 10 device but I am on 11. Is this a sign that something is wrong with my account or just a typo?

This appeared on my passwords setting page on FF

After a little googling I thought the page was probably safe but in fact it's ServerNotFound

What's going on? Has FF itself been hacked?

I prefer to have VPN support no matter how I am using the internet. I would prefer that Mozilla get rid of all of the debug statements in the existing paid for VPN as it is a drag on my system. The debug issue exists on Windows 11, Android 16 and Linux (Debian 13.4).

Hello,

why you advertise a A free VPN you can trust, now built into Firefox ! when it s not free at all ?

https://blog.mozilla.org/en/firefox/built-in-vpn/ best regards

I signed into one of my financial accounts and it said the sign in was with firefox windows 10. I have windows 11 on my computer. Is this a security issue? Fire fox says i am on the latest version

When I opened my computer this morning, it said Firefox crashed. Yesterday, I was scammed by a scammer claiming to be from Microsoft who had me do many things on my computer to remove a virus that wasn't there. Instead, I suspect he may have access to my information now. So this morning after it said that Firefox had crashed, I asked to open a new Firefox session and things seemed to be normal. Please double check to make sure there is nothing wrong with my Firefox account and let me know. Thank You!

I just had another credit card get fraudulent charges. I have no clue how they are getting my card numbers, I have pulled all but 1 from anywhere online, but they just got another one. I couldn't get Mozilla VPN to work it just quit working at all. I turned Pocket off but I'm still getting 17 to 18 instances of Firefox. Dont know where to go now. Thinking of pulling the plug and starting over.