Thanks for letting us know. I spoke to one of our engineers and they were wondering if this happens consistently. They were wondering if it happens after you refresh the browser. Please let me know so we can help you resolve this issue.
I also have a similar problem where the 'Edit Answer' tab does not activate anything except I do not get any error message. Same thing when I try to share wins by clicking on the Facebook tab. I have tried to click on the tabs on both Firefox and Chrome with no success.