ISImprovements

Name: ISImprovements
Author: Hzik

By: Hzik

This extension highlights classes of particular study in IS of MUNI.cz so you don't have to compare them manually by yourself. It also grabs UCO from student email address in Outlook365 and place it above it for simpler copying.

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User Growth & Download Statistics

Add-on

By:

Hzik

Daily users:

3 1

Version:

1.30 Last updated: 2026-02-27

Version code:

6163580

Creation date:

2021-04-30

Risk:

Permissions:

https://is.muni.cz/*
https://outlook.office.com/*
https://mu.hermannovi.com/*
https://outlook.cloud.microsoft/*
webRequest
<all_urls>

Content scripts matches:

is.muni.cz
outlook.office.com
outlook.cloud.microsoft

Size:

55.29KB

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-18

Compare stats and ranking:

Ranking

# 53,876 ▲ 10,383

Other rankings

#88 in improve keyword 33 ▲ 19

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:

Hzik

Firefox Add-ons Store

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

Permission Change History

2026-02-28: Version 1.29 → 1.30

Add Permissions: https://outlook.cloud.microsoft/*

2025-10-06: Version 1.26 → 1.29

Add Permissions: https://mu.hermannovi.com/* webRequest <all_urls>

Remove Permissions: https://univerzitni.cloud/*

2024-12-09: Version 1.19 → 1.22

Add Permissions: https://univerzitni.cloud/*

Is ISImprovements 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.

ISImprovements requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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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.

ISImprovements 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 **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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