Main page displaying incorrectly

Sorry for posting here if inappropriate, I’ve been searching around and couldn’t find a better place for my question.
It should probably be posted as a bug report but i didn’t know how to do it properly.
Text in the main page is corrupted with many missing characters.
I’d post a screenshot but it’s not possible.
The Document Foundation main page displays incorrectly on my browser. It has been like this for weeks or more.
System is Win 7 64
Browser is Firefox 30.0