Hello Julie. First of all, and although possibly not related to your problem, I will remind you that the version of Firefox you are using at the moment as been discontinued and is no longer supported. Furthermore, it has known bugs and security problems. I urge you to update to the latest version of Firefox, for maximum stability, performance, security and usability. You can get it for free, as always, at [http://www.getfirefox.com www.getfirefox.com]. As for your issue, I believe Morning Coffee is either an extension or a website (or both). In any case, you should ask the ones responsible for its maintenance for help.

See http://shaneliesegang.com/projects/coffee.php