Exceptionally well thought out. Perfect. Rated 5 out of 5 stars
Have you ever seen any other add-on with a facility to position the day / date / time within the add-on bar? Quite exceptional in my opinion. Other add-ons need to have the same facility because it is not possible to move an add-on within the bar using the Firefox customize facility.
If you simply want a clock that improves on Windows 7 clock then this is it. I have it positioned just above the Windows 7 clock and it gives a me a customizable day / date / time and even seconds. Even if you install another add-on in the bar this add-on will remain in the same position. Brilliant!