ყველა პასუხი (2)
Please explain the problem in detail. What happens? What is/are the exact error message(s) ?
The current requirements for Whatsapp seem to be Windows 8 or higher or Mac OS X 10.10 or higher and Firefox 60 or higher. If your OS is supported then you need to update a more recent Firefox version, otherwise you need to update to a newer Windows version.