问题
I'm using Froala editor (the free version) and I have the problem that I can't see any icons on the formating buttons.

Is there any way to fix it? Thanks!
回答1:
You're not including Font Awesome correctly or if you have simply opened a HTML file using the file protocol the icons don't appear in Firefox (see Fonts Not Showing https://froala.com/wysiwyg-editor/browsers).
It is best to include Font Awesome like on https://github.com/froala/wysiwyg-editor/blob/master/examples/basic.html#L6 in order to avoid all the issues above.
来源:https://stackoverflow.com/questions/28839200/froala-editor-not-working-icons