Go Guardian 

Working only on chromebooks

GoGuardian Remover MAKE SURE TO ALLOW PASTING BY TYPING "ALLOW PASTING" AFTER ATTEMPTING TO PASTE

Go to this site: chrome://serviceworker-internals/

Go to the second Start button and click it. 

Paste both scripts listed below inside one at a time and press enter (if it doesn't work try each one of them)

chrome.management.setEnabled('haldlgldplgnggkjaafhelgiaglafanh',false)

chrome.management.setEnabled('dhbknkabhmgdbeodgaaikfkgagnllnaf',false)

To check if it worked go here: chrome://extensions