Ethereum Gas Prices for Chrome
More About Ethereum Gas Prices
The badge displays the current gas price estimation for "normal" transaction speeds: not too slow, not too fast. (This can be changed: click on any number in the table to set it as your preferred choice of to be displayed in the badge.)
Clicking on the badge displays price estimations for different speed expectations ("slow", "normal", and "fast" transaction times). Each data provider has a different estimation according to their own calculation method. GasNow uses memory pool information to make gas price estimations, while Etherscan and EthGasStation use on-chain block data, which is more of a lagging indicator.
Data from all providers is automatically refreshed every minute, and can be refreshed manually too.
The extension respects your privacy: zero data tracking, zero permissions required.
Open source code: https://github.com/unspentio/ethereum-gas-prices-browser-extension