Only Works Once! Rated 1 out of 5 stars

After the first time, it quits working and refreshing the page doesn't solve the problem.

This review is for a previous version of the add-on (1.0). 

With Firefox 22 having a "What The Font" capability - https://hacks.mozilla.org/2013/04/developer-tools-update-firefox-22/ - I'm debating on officially ceasing development of this addon. I've been trying to figure out the "only works once" bug for over a year, but it aludes me.

Do you think the new Developer Tools feature makes this addon obsolete, or should I continue development?