Did FF try to open that site? I doubt FF has any malware unless something got past security or the security software loaded something that it wasn't supposed to as well either. FF doesn't load sites unless the user or malware infected is trying to do so which it sounds like here.

WestEnd said

Did FF try to open that site? I doubt FF has any malware unless something got past security or the security software loaded something that it wasn't supposed to as well either. FF doesn't load sites unless the user or malware infected is trying to do so which it sounds like here.

Thanks, but: 1- This issue started recently. 2- I did not installed any apps to my laptop or even addons to FF recently. 3- The antivirus software is genuine, updates each 3 hours, installed since more than year and I never stop or quit it. 4- My OS is genuine as well and I keep it updated. 5- The website nanocloud.com isn't a malware itself.

I am not saying FF has malwares, I use it since years. I just thought it maybe a new service or third-party related to FF. As I doubt my laptop is infected.

see this page:

• https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections

did you install any software before this happens?

about the site nanolcoud.com:

• https://www.bloomberg.com/research/stocks/private/snapshot.asp?privcapid=315186554

also scan your system with:

• https://www.malwarebytes.com/

• https://www.malwarebytes.com/adwcleaner/

• https://www.hitmanpro.com/en-us/hmp.aspx

use malwarebytes in safe mode and normal mode.