Description from extension meta
Adds to osu! beatmaps selection page additional details to help you choose the right beatmaps more efficiently and conveniently
Description from store
A web extension for the website https://osu.ppy.sh, specifically for the beatmaps page. It reads information from the page and, based on the target website's API, obtains more detailed information about each beatmap using its own intermediate server. The extension also allows users to find out how many performance points they will receive for completing a map by clicking a special button, after which the server performs the calculation.
The extension uses localStorage to cache beatmap data in the browser, speeding up loading. The cache is managed automatically and cleared periodically to keep data fresh and efficient.
Currently in beta.