Accents on this page are splitting

Hi - in Firefox, the accents on the timeline section are split (the french is not rendering correctly) -

http://sbccimplementationkits.org/urban-youth/courses/urban-adolescent-sbcc-implementation-kit/?lang=fr

On the rest of the page, they are correct (look at the title). Any ideas on how to fix this? It's viewing correctly in Chrome.

Thanks.