# GemMarker

> Web Extension making 'The Settlers Online' collectibles easy to find!

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

## Overview

- **ID:** `gemmarker`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** GemMarker
- **Category:** web-development,appearance,games-entertainment
- **Daily users:** 1
- **Version:** 0.7.3
- **Last updated:** 2025-08-07
- **First published:** 2025-08-02
- **Size:** 208 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/gemmarker/)

## Description

GemMarker - The Settlers Online Resource Marker

🎮 Transform Your Settlers Experience!

GemMarker is the ultimate Firefox extension that revolutionizes how you play The Settlers Online! Say goodbye to endless searching and hello to smart resource detection with beautiful colored overlays.

✨ What Makes GemMarker Special?

<strong>🎯 Smart Detection</strong>: Automatically identifies and marks important game resources with precision
<strong>🎨 Color-Coded System</strong>: Easy-to-spot colored overlays for different resource types
<strong>⚡ Lightning Fast</strong>: Optimized performance with minimal impact on your game
<strong>🛡️ Safe &amp; Secure</strong>: No data collection, works entirely client-side
<strong>💾 Persistent Settings</strong>: Your preferences are saved between sessions

🔍 What Resources Does GemMarker Mark?

🔴 Red Mine Sites
<ul><li>Various mine types highlighted with red overlays</li><li>Easy identification of valuable mining locations</li><li>Perfect for resource planning and expansion</li></ul>
🟡 Yellow Exhausted Resources
<ul><li>Marks depleted marble, copper, and field resources</li><li>Avoid wasting time on exhausted locations</li><li>Custom yellow sprites for clear visibility</li></ul>
🌸 Pink Artifacts
<ul><li>Highlights collectible artifacts scattered across the map</li><li>Never miss a valuable collectible again</li><li>Single toggle controls all artifact markings</li></ul>
🎛️ Interactive Control Panel

<strong>Smart Controls</strong>: Toggle individual resource types on/off with ease
<strong>Enable All</strong>: Turn on all markings with one click
<strong>Disable All</strong>: Turn off all markings instantly
<strong>Refresh Button</strong>: Apply changes only when needed
<strong>Debug Tools</strong>: Built-in troubleshooting system
<strong>Minimize Option</strong>: Collapse panel to save screen space

🚀 How It Works

GemMarker uses advanced network request interception technology:
<ol><li><strong>Smart Detection</strong>: Monitors game assets and identifies markable resources</li><li><strong>Asset Replacement</strong>: Replaces original game assets with colored overlays</li><li><strong>Dynamic Rules</strong>: Creates and manages rules on-the-fly based on your preferences</li><li><strong>Visual Feedback</strong>: Provides immediate visual confirmation through the control panel</li></ol>
📱 Easy Installation
<ol><li><strong>Download</strong>: Get the extension files</li><li><strong>Open Firefox</strong>: Navigate to <code>about:debugging#/runtime/this-firefox</code></li><li><strong>Load Extension</strong>: Click "Load Temporary Add-on" and select the manifest.json file</li><li><strong>Start Playing</strong>: Navigate to The Settlers Online and enjoy!</li></ol>
🎯 Perfect For
<ul><li><strong>Resource Hunters</strong>: Find valuable resources quickly</li><li><strong>Collectors</strong>: Never miss artifacts again</li><li><strong>Efficiency Players</strong>: Optimize your resource gathering</li><li><strong>New Players</strong>: Learn resource locations faster</li><li><strong>Veteran Players</strong>: Streamline your gameplay</li></ul>
🔧 Advanced Features

<strong>Network Interception</strong>: Uses Firefox's latest <code>declarativeNetRequest</code> API
<strong>Custom Sprites</strong>: Special yellow overlays for exhausted resources
<strong>Persistent Storage</strong>: Your settings are remembered between sessions
<strong>Debug System</strong>: Comprehensive troubleshooting tools
<strong>Performance Optimized</strong>: Minimal impact on game performance

🛡️ Privacy &amp; Security
<ul><li><strong>No Data Collection</strong>: We don't collect or transmit any data</li><li><strong>Local Storage</strong>: All settings stored locally in your browser</li><li><strong>No Tracking</strong>: Zero analytics or tracking</li><li><strong>Open Source</strong>: Transparent and trustworthy</li><li><strong>Safe Permissions</strong>: Only necessary permissions requested</li></ul>
🎮 Supported Game Features

<strong>Mine Detection</strong>: Red overlays for various mine types
<strong>Exhausted Resource Marking</strong>: Yellow overlays for depleted resources
<strong>Artifact Highlighting</strong>: Pink overlays for collectibles
<strong>Dynamic Updates</strong>: Real-time resource detection
<strong>Cross-Session Persistence</strong>: Settings saved between game sessions

🔧 Technical Excellence

<strong>Manifest V3</strong>: Uses the latest Firefox extension standards
<strong>Content Scripts</strong>: Seamless integration with game interface
<strong>Background Scripts</strong>: Efficient rule management
<strong>Storage API</strong>: Reliable preference persistence
<strong>Declarative Net Request</strong>: Advanced network interception

📊 Performance Benefits
<ul><li><strong>Faster Resource Finding</strong>: Locate resources in seconds, not minutes</li><li><strong>Reduced Eye Strain</strong>: Clear color coding reduces visual fatigue</li><li><strong>Improved Efficiency</strong>: Focus on gameplay, not searching</li><li><strong>Better Planning</strong>: Strategic resource management made easy</li></ul>
🎯 Use Cases

<strong>Early Game</strong>: Quickly identify valuable starting resources
<strong>Mid Game</strong>: Efficient expansion planning with resource visibility
<strong>Late Game</strong>: Optimize resource gathering for advanced buildings
<strong>Artifact Hunting</strong>: Never miss collectibles during exploration
<strong>Resource Management</strong>: Track exhausted vs. available resources

🔄 Workflow
<ol><li><strong>Enable Markings</strong>: Use individual toggles or "Enable All"</li><li><strong>Apply Changes</strong>: Click the refresh button when ready</li><li><strong>Page Refresh</strong>: Automatic reload applies new markings</li><li><strong>Visual Confirmation</strong>: See colored overlays immediately</li><li><strong>Enjoy Gaming</strong>: Focus on strategy, not searching!</li></ol>
🛠️ Troubleshooting

<strong>Markings Not Appearing?</strong>
- Check extension is enabled
- Verify toggles are in "on" position
- Click refresh button to apply changes
- Ensure you're on a supported game page

<strong>Control Panel Missing?</strong>
- Refresh the game page
- Check browser console for errors
- Verify proper installation
- Try disabling and re-enabling

<strong>Performance Issues?</strong>
- Disable unnecessary markings
- Close other browser tabs
- Restart browser if needed

🌟 Why Choose GemMarker?

<strong>Proven Technology</strong>: Based on years of extension development experience
<strong>Active Development</strong>: Regular updates and improvements
<strong>Community Driven</strong>: Built for The Settlers Online community
<strong>User Friendly</strong>: Intuitive interface designed for all skill levels
<strong>Reliable Performance</strong>: Stable and consistent operation

🎉 Get Started Today!

Transform your Settlers Online experience with GemMarker! Join thousands of players who have already enhanced their gameplay with smart resource detection.

<strong>Download now and start collecting resources like a pro!</strong> 💎

<em>GemMarker - Making The Settlers Online more enjoyable, one resource at a time!</em>

<strong>Compatibility</strong>: Firefox 113+, Manifest V3
<strong>Permissions</strong>: Storage, Tabs, Declarative Net Request
<strong>Privacy</strong>: No data collection, local storage only
<strong>Support</strong>: Built for The Settlers Online community

## Rankings

- #104,180 — Overall
- #99 — marker

## Permissions and access

### Permissions

- `declarativeNetRequest`
- `storage`
- `tabs`

### Host permissions

- `https://www.tsotesting.com/`
- `https://www.tsotesting2.com/`
- `https://ubistatic-a.akamaihd.net/`
- `https://www.diesiedleronline.de/`
- `https://www.juego-thesettlersonline.com/`
- `https://www.thesettlersonline.com/`
- `https://www.thesettlersonline.com.br/`
- `https://www.thesettlersonline.cz/`
- `https://www.thesettlersonline.es/`
- `https://www.thesettlersonline.fr/`
- `https://www.thesettlersonline.gr/`
- `https://www.thesettlersonline.it/`
- `https://www.thesettlersonline.net/`
- `https://www.thesettlersonline.nl/`
- `https://www.thesettlersonline.pl/`
- `https://www.thesettlersonline.ro/`
- `https://www.thesettlersonline.ru/`

### Content script matches

- `www.thesettlersonline.com`
- `www.tsotesting.com`
- `www.tsotesting2.com`
- `www.diesiedleronline.de`
- `www.juego-thesettlersonline.com`
- `www.thesettlersonline.com.br`
- `www.thesettlersonline.cz`
- `www.thesettlersonline.es`
- `www.thesettlersonline.fr`
- `www.thesettlersonline.gr`
- `www.thesettlersonline.it`
- `www.thesettlersonline.net`
- `www.thesettlersonline.nl`
- `www.thesettlersonline.pl`
- `www.thesettlersonline.ro`
- `www.thesettlersonline.ru`

## Safety

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

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- 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/gemmarker)