# ISImprovements

> 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.

Canonical page: [https://chrome-stats.com/d/isimprovements](https://chrome-stats.com/d/isimprovements)

## Overview

- **ID:** `isimprovements`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Hzik
- **Category:** appearance,other
- **Daily users:** 1
- **Version:** 1.32
- **Last updated:** 2026-07-12
- **First published:** 2021-04-30
- **Size:** 56 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/isimprovements/)

## Description

ISImprovements is a Firefox add-on that 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.

## Rankings

- #129,283 — Overall
- #157 — improve

## Permissions and access

### Permissions

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

### Content script matches

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

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/isimprovements)