When you joint new online service you are actually reveal your personal information to the online services. Maskme is browser extension that will help you to hide personal information.
MaskMe creates disposable email addresses, phone numbers, and credit cards. Every time you sign up for a site Choose to Mask your email address, phone number, or credit card, using unique, disposable info that MaskMe creates and autofills on the spot. It works instantly, every time, everywhere. It helps to stop spammers, telemarketers and hackers.
Add on Chorme click here
Add on Mozilla click here