where did this appeared from ? Rated 3 out of 5 stars

honestly i must admit it is a shame and a great damage to my perfect self image of being paranoid and extra cautious about web and pc behaviour, but i just found this addon installed in my firefox. could it be that some other software bundle this addon without user consent? does anyone know how else could get this installed without user noticing anything? thanks

this addon isn't bundled anywhere. you have to use the addons.mozilla.org website to install it. anyway, sounds like a fun night with lots of booze :)