There may be a point where you want to ‘reset’ AdBlock Plus back to ‘factory defaults’. This can be the case where you are blocking something you don’t want to and can not figure out how to unblock it or AdBlock Plus is mis-behaving (can happen to any add-on). So, how do you reset AdBlock Plus, is it just a matter of uninstalling the add-on then re installing? Not quite, there ara a couple steps in between uninstalling and re-installing AdBlock Plus. Here is what you need to do to ‘reset’ AdBlock Plus: From the Add-ons Manager (Firefox Menu > Add-ons…