This extension helps you to place orders in currency($/€) at current BTC value or any of your choice. I made this extension to help me out to place orders on GDAX on the fly without having to make any conversion from fiat to BTC if this helps you please donate BTC:12ASwQ4CwiDtkcALLNGG5Zc7M7oMV4bVLb ETH:0x69F438950227E6c8e37C1094710EA5CCE881B5FA LTC:LfUti1AFBryX9t71fxLyNm4Yb2WPLpUeDw