So on some private forums i v found interesting thread. Gmail is using flash cookies to catch multiple email creators and screw them with sms verification. After googling little i v found a really nice free tool called bleachbit Code: http://bleachbit.sourceforge.net/ It cleans possibly every single privacy thing on your pc including flash cookies you can imagine and its 100% free. Can someone test it and post results here? I am so busy at the momment i really have no time to test. p.s.: make sure to use proxy as well after deleting privacy you dont want.\ edit: OK MANAGED TO TEST THIS MYSELF, changed ip, all privacy stuff deleted with bleachbit and unlike before when i was trying with proxy only and only deleting cookies and IE stuff IT WORKS!