Ethereum (ETH) | Simple Ticker is a free Chrome add-on developed by txpetr.cz. This add-on displays quick information about the current price of Ethereum in your browser's toolbar. With this add-on, you can easily stay updated on the price of Ethereum without having to navigate away from your current webpage.

The add-on functions by displaying the current Ethereum price in USD from coinlib.io directly in your browser's toolbar. The price is checked every minute to ensure that you have the most up-to-date information. The add-on also features a badge color that changes according to the current exchange rate, with red indicating a decrease and green indicating an increase.

Additionally, when you click on the toolbar icon, a popup window will appear, providing you with detailed statistics about Ethereum. This allows you to quickly access important information without any hassle.

Overall, Ethereum (ETH) | Simple Ticker is a convenient and user-friendly add-on for Chrome users who want to easily monitor the price of Ethereum while browsing the web.