I'm using this plugin to embed a calendar in one of my pages: http://selfdefensekenpo.com/horarios/
It's working fine in IE and Chrome, but not in Firefox. I've put an alternative link for visitors as an initial solution, but I'd like to know if there's anything I could do to fix this.
Thank you very much in advance.
PS: My installation:
- WordPress version: 3.4.1
- Plugin version: 1.2