Why doesn't Firefox show the ruble sign?

Question

css

Good afternoon. I can’t understand why in all browsers (Safari, Chrome and Yandex) it shows, but in Firefox it doesn’t show the ruble sign. How to solve the problem?

Answer 1

Try to paste in unicode
₽

Answer 2

Why doesn't Firefox show the ruble sign?

Because it is OURS)))
But seriously - give a link to the page. It's so hard to say. Look at the console, maybe there is an icon that is not loaded for one reason or another. For example, the domain is with https and without www, and the url of the font of the icon is with www and it regards this as a cross-domain request, for example, there are a lot of options. Give me a link