Just want to add that this was not just a Firefox issue.
It did not work on my computer in Chrome, FF or IE.
Now, after upgrading to 1.3.6, the clock is working in Chrome... have not checked the other browsers after the upgrade to 1.3.6 though.
Before this BUGFIX, the clock worked... kind of.. But very hard to use since the clock itself was not visible....
But the clock was there... in an invisible state....
I also notice that there is no changelog coming with the zip file anymore.
There was a changelog in 1.3.4
Why is the changelog not beeing shipped with the extension anymore?