Just found out about this Google Chrome extension called cryptotab, it works by mining in the background while you have Google Chrome open, as with all things like this it wont make a fortune but i thought a handy thing to have and earn in background while browsing anyway.
This is how much i have earned using it for an hour or two, have just started using it so dont have any payout proofs.
The link to it is https://getcryptotab.com or if you would like to use my referral link https://getcryptotab.com/555503