Links not working on Mozilla Firefox

You might have a unclosed tag somewhere that is causing issues. Or maybe a plugin that has added something that is clearing properly.

I do not have any unclosed tags. I just deactivated the only 3 plugins I had active and still the links in the main menu don’t work on Mozilla Firefox but they work on Chrome. Why?

Does the same thing happen for you on the demo?

https://demos.bavotasan.com/arcade/

If not, then it has something to do with either your installation or the content of the page.