Diễn đàn hỗ trợ Firefox

Last few days I've been getting this popup:

Attention!!! Click to turn on the antivirus

or

Attention!!! Click to scan the device

obviously some phishing or something. How can I get rid of it?

Does Firefox "remember" any browser data from another Windows user account? I created a guest account for someone today and while I was browsing, I got redirected to a site called fy3 dot fit which had the fake captcha. I did not open the run box and did not paste any commands from it, so is the guest account compromised or do I need to nuke Windows and start again? I read on reddit that it's an infostealer but if Firefox does not remember the other user account's browser data, does that mean nothing would be stolen if I did run it?

I can't delete the malware "Startfenster. I tried to find help with "Google"-Search. Without any success! This malware exists for me in "Firefox" only. Other browsers are not affected. Perhaps anyone can help me... Thank's!

A couple days ago when I opened Firefox, I immediately started getting pop up messages saying I had viruses. If I clicked on REMOVE VIRUS, it tried to get me to sign up with McAfee. I cannot see my full screen due to all the pop up screens. My MS Defender virus protection is not identifying any viruses.

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]

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.

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.

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.

After all of those years, am I witnessing now that FF literally failing?

How could it become mysterious by that it lets user's location leaked to github even though: - third-party HiFi company VPN is active and in OpenVPN UDP/TCP, Wireguard, IPv6 On/Off, etc... - No bookmark to corresponding website - Cache and website data were so-called cleaned, - Other browsers don't give that symptom, only FF - No related plugin, out of only 3

it's impossible to find out how it lends to the language and region query of this website every time after cleaning. Is FF getting closed app?

Is that a no-way-to-explain effect of language models' evolution is exponentially higher in every 4 months after two years?

I've purposefully used the environment variable to disable the security sandbox.

How can I acknowledge and hide the persistent warning? Is there any about:config value for it?

Thank you!

On my Windows 11 computer messages keep cropping up supportably from Firefox. I have switched the computer off. this is from my old computer. I don't know what to do now. Colin

Hi all the people,

I was just surprised to see this in an Apache HTTP log: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Firefox/58.0.1"

This bugs me. My first guess would be that a Webkit based Firefox could not be qualified as really Firefox. Although that, I could imagine a Firefox for iOS or MacOS based on Webkit, may be, but it says it is on Windows, which makes less sense.

I suspect this is a user agent string spoofing, but I just need to be sure (I try to get ride of far too invasive bots, while I’m afraid to disrupt browsing from legitimate web users).

With thanks and my apologizes for such a question which may looks obvious or strange to people who know for sure.