Get the latest tech news
Still running Firefox on Windows 7? Mozilla has your back (for now) but admits it's risky without "official support from Microsoft" | Firefox extends support for Windows 7, 8, and 8.1 with ESR updates, giving legacy operating systems six more months of security coverage.
Firefox will continue security support for Windows 7 through ESR updates for 6 more months.
None
Or read this on r/technology