oii

Name: oii
Rating: 5 (3 reviews)
Author: Ferry

By: Ferry

Adds ii (improvement indicator) metric to user profiles on the osu! website

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Features & Capabilities

The oii Chrome extension enhances your osu! experience by adding the ii (improvement indicator) metric directly to user profiles. This unique metric measures how quickly a player improves compared to the average osu! user, offering insight into player development.

With an ii of 1, a player is improving at an average pace; 2 means twice as fast, while 0.5 indicates half the average speed. The extension calculates ii based on players' performance points (pp) and playtime, allowing users to add additional playtime from other sources for accuracy. It also includes a "Goal pp" feature, projecting when a player may reach a target pp based on individual improvement curves. Note that the extension is still in early release, so expect updates and potential bugs.

User Growth & Download Statistics

Add-on Games

By:

Ferry

Daily users:

1,655 19

Rating:

5.00

(3)

Version:

2025.11.0 Last updated: 2025-12-03

Version code:

6090119

Creation date:

2025-02-06

Risk:

Content scripts matches:

osu.ppy.sh

Size:

247.90KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-21

Compare stats and ranking:

Ranking

# 2,494 ▲ 16

Other rankings

#224 in Games & Entertainment ▲ 2

For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Ferry

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/oii/

Website:

https://discord.gg/jRtEpAZMt4

User Reviews

by *****, 2026-05-10

by Fi*****, 2025-12-20

super sigma

by Fi*****, 2025-06-05

View all user reviews ›

Is oii Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

oii requires very minimum permissions.

Risk impact analysis details

High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
Low ******* ****** ** *** ********* ******** ******

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

oii is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******