Unable to use Safari on my Mac
It saying the browser is not supported I’m trying to use safari on my Mac and open something and it’s giving me that… what can I do?
[Re-Titled by Moderator]
iMac 21.5″, macOS 10.12
If using a Mac With macOS 10.12 Sierra as shown in your device line , then yes, the browser is likely too old to be supported on websites today.
It's an 8 year old operating system, and the Safari web browser likely has not seen updated in at least 6 years.
If you need to keep accessing websites in such an old OS, you will need to find a Web Browser that supports it and can access current websites technologies. It probably won't be easy at this point.
You may be better served by updating to at least 10.13 High Sierra or if possible something newer that can run newer web browses like Brave.