Disables blocking periodically, complete shit

AMAZING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Significantly affected performance after installing, for example I can't even smoothly switch between tabs using Ctrl+PageUp/PageDown when this addon is enabled.

Edit: I'm just looking for an addon that blocking JavaScript from certain sites, it seems this addon is overweight for me.

This is the best recommendation i received and i would recommend it other people to use it.