# ModWe

> Modify websites using custom CSS and JS snippets. Usefull for Developers, you can add Pages for which you can write CSS and JS snippets wich will be injected into them. All of them are custom writen by you on the Options page.

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

## Overview

- **ID:** `modwe`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Tomáš Chylý
- **Category:** web-development,appearance
- **Daily users:** 1
- **Rating:** 1.00 / 5 (1 ratings)
- **Version:** 1.2.0
- **Last updated:** 2020-08-17
- **First published:** 2019-05-28
- **Size:** 512 KB
- **Data as of:** 2026-09-15
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/modwe/)
- **Website:** [https://github.com/tomaschyly/ModWe/issues](https://github.com/tomaschyly/ModWe/issues)

## Description

ModWe is a Firefox add-on that enables developers to modify websites by injecting custom CSS and JS snippets. It is useful for developers who want to add and customize code for specific pages, all of which can be written and managed on the Options page. This extension does not sync with your profile, but you can easily export and import your options. Fully loaded CSS and JS snippets are inserted into pages that match regular expressions defined by you.

## Rankings

- #87,757 — Overall

## Permissions and access

### Permissions

- `<all_urls>`
- `storage`
- `activeTab`
- `tabs`
- `downloads`

## Safety

- **Risk impact:** 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/modwe)