The Fantrax Baseball Hot/Cold Indicator is a chrome extension developed by Daniel Adams-Meade. It falls under the category of Browsers, specifically Add-ons & Tools. This free extension is designed for Fantrax fantasy baseball league players, providing them with a convenient way to identify which hitters are currently performing well ("hot") or poorly ("cold").

When using the extension on Fantrax.com, it displays a small fire icon next to players who are hot and a snowflake icon next to players who are cold. This visual indicator helps users make informed decisions when it comes to lineup choices, trades, and waiver pickups.

The hot or cold status of a player is determined by analyzing their key batting statistics such as AVG, OBP, and SLG over the past 7 and 14 days. The extension calculates thresholds for hot and cold statuses based on MLB averages, allowing users to identify players who are on a tear or in a slump.

To provide quick analysis, the extension caches each player's recent stats in the background and updates periodically. When the Fantrax page loads, the extension's content script checks for player names and displays the corresponding icon based on their cached statistical status.

With the Fantrax Baseball Hot/Cold Indicator, users can easily identify which hitters are hot or cold right on the Fantrax site. This eliminates guesswork and helps users make more informed lineup decisions, as well as stay updated on player trends throughout the season.