I guess the point I was trying to make is: It might be good for a web artifact like this to degrade gracefully when browsers (and their addons) interfere. Like

I guess the point I was trying to make is: It might be good for a web artifact like this to degrade gracefully when browsers (and their addons) interfere. Like "you seem to be blocking Facebook with XYZ..." or a similar message. Realize it's just a prototype -- can understand if you don't want to take the trouble. Cool idea in any case.