# ProtonDB for Steam

> Adds the ProtonDB rating to games in the Steam store so you get an idea of how it will run before you buy it!

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

## Overview

- **ID:** `protondb-steam`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Vvamp
- **Category:** shopping,games-entertainment
- **Daily users:** 567
- **Weekly downloads:** 21
- **Rating:** 5.00 / 5 (10 ratings)
- **Version:** 1.6.4
- **Last updated:** 2026-04-12
- **First published:** 2022-01-16
- **Size:** 46 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/protondb-steam/)
- **Website:** [https://github.com/MostwantedRBX/proton-chrome-extension](https://github.com/MostwantedRBX/proton-chrome-extension)

## Description

ProtonDB for Steam is a handy Chrome extension that adds ProtonDB ratings directly to Steam game pages. This allows Linux gamers to quickly assess how well a game will run using Proton before purchasing. The extension displays Proton compatibility badges alongside native Linux availability, offering a seamless way to make informed game buying decisions.

Built on manifest v3, ProtonDB for Steam requires optional permissions to access protondb.com and store.steampowered.com for fetching ratings data. The project is open-source and available on GitHub, with credits to MostwantedRBX for founding it. Ideal for gamers seeking Linux compatibility info on Steam, this extension enhances the browsing experience with essential ProtonDB insights.

## Rankings

- #4,632 — Overall
- #201 — Shopping
- #13 — steam
- #47 — promos
- #67 — team
- #95 — tons

## Permissions and access

### Permissions

- `storage`

### Host permissions

- `https://www.protondb.com/*`

### Content script matches

- `store.steampowered.com`

## Safety

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

### Analysis details

- Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
- 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).

## Similar extensions and apps

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