Firefox Mac Os 10.11.6 -

If you are still on 10.11.6, Safari 11.1.2 is your default browser. It’s a relic. Here’s why switching to is a no-brainer:

Running Firefox on is a common challenge for users with older hardware, as modern web browsers have largely moved on from this operating system. While you cannot run the newest version of Firefox, you can still maintain a functional web experience with the correct legacy version. The Definitive Firefox Version for OS 10.11.6 Firefox Mac Os 10.11.6

If you need better security or modern features: If you are still on 10