A user lists a Bitcoin extension program with 50,000 users for 74.35 million won.

A Bitcoin price-tracking browser extension listed as having 50,000 users, "Bitcoin Price Tracker," has been put up for sale at $55,650 (about 74.35 million won), with the buyer also receiving publishing rights so new versions can be pushed to existing installs. Developer and owner Extcorp posted the sale notice on September 29, offering the published extension and its source code, with 14 days of handover support after closing; the listing does not state that a deal has been completed. The Chrome Web Store page says the extension displays BTC prices in the toolbar using Binance data and refreshes every minute, with the listed version at 1.1.3. The sale matters as a test of how the market values a small but established crypto data tool with a built-in user base, and what to watch next is whether a buyer emerges and whether the new owner ships updates that reach the existing 50,000 installs.