Netkeibaメモ拡張 is a Chrome extension that enhances the functionality of Netkeiba's racehorse memo feature. Users can expand the number of favorite horse memos almost infinitely, surpassing the usual 30-horse limit for free members at no cost. Additionally, it allows users to bypass the 100-character limit for each memo entry.

This extension, integrated into Netkeiba's racehorse pages, leverages Chrome's bookmark feature. Users should note that if they have previously bookmarked racehorse pages, the extension may not function correctly. It's essential to understand that this extension differs fundamentally from Netkeiba's native "favorite horse" feature, as it solely focuses on expanding memo capabilities without providing notifications for upcoming races or race results.