FoxDen by Link
A browser extension that offers a home to a tiny companion. Browse the web and visit them every day to keep them healthy and happy. Your tiny companion also come with dev tools, minigames, achievements and a leveling system with bonuses, mali, items
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About this extension
A browser extension (originally developed for Firefox) that offers a home to a tiny companion that works similarly to a Tamagotchi. Browse the web and visit them every day to keep them healthy and happy (don't miss your appointment for three days!). Your tiny companion also comes packed with useful developer tools!
Define the Name and Type of the mascot that will follow you in your adventures!
Your companion levels up as you explore the web. You can set a Navigation Focus (e.g., Studying or Work Tech) to gain bonus experience when visiting relevant websites.
Be careful, though! Visiting sites that directly conflict with your chosen focus (like social media while studying) will cause you to lose experience and make your companion sad.
Now your companion can react to types of websites you visit! Sometimes try to check them out to see how they feel about the site you're reading. (Do you think they're missing an important domain or websites category? Open an issue on GitHub to let me know!)
A variety of achievements and Easter eggs are built right into the extension. Just browse normally, try out different tools, and you might stumble upon a tiny surprise!
Spend your hard-earned XP to buy items that keep your mascot healthy! You can purchase mystery potions, life recoveries, arcade passes, and more.
Your mascot tracks your browsing habits and activity throughout the week, presenting them in an interactive heatmap along with a breakdown of your top website categories.
Take a break and play classic minigames! Try Minesweeper, 2048, and Sudoku directly inside the extension. Winning minigames awards bonus XP up to a daily cap (which can be increased using items from the shop!).
Quickly map local DNS records or custom domain shortcuts directly inside your extension. For example, visiting
A handy suite of web development utilities:
* Inject Custom CSS & JS: Inject styles or execute code on the active page in real time.
* Live HTML Editor: Toggle
The icon placeholder is a project by Pota12 and is licensed under CC BY-SA 4.0.
The extension is released under the GNU GPLv3-only License.
Define the Name and Type of the mascot that will follow you in your adventures!
Your companion levels up as you explore the web. You can set a Navigation Focus (e.g., Studying or Work Tech) to gain bonus experience when visiting relevant websites.
Be careful, though! Visiting sites that directly conflict with your chosen focus (like social media while studying) will cause you to lose experience and make your companion sad.
Now your companion can react to types of websites you visit! Sometimes try to check them out to see how they feel about the site you're reading. (Do you think they're missing an important domain or websites category? Open an issue on GitHub to let me know!)
A variety of achievements and Easter eggs are built right into the extension. Just browse normally, try out different tools, and you might stumble upon a tiny surprise!
Spend your hard-earned XP to buy items that keep your mascot healthy! You can purchase mystery potions, life recoveries, arcade passes, and more.
Your mascot tracks your browsing habits and activity throughout the week, presenting them in an interactive heatmap along with a breakdown of your top website categories.
Take a break and play classic minigames! Try Minesweeper, 2048, and Sudoku directly inside the extension. Winning minigames awards bonus XP up to a daily cap (which can be increased using items from the shop!).
Quickly map local DNS records or custom domain shortcuts directly inside your extension. For example, visiting
myamazinghomeserver.me can redirect you straight to 192.168.1.100. It's perfect for web developers testing local environments or setting quick shortcuts.A handy suite of web development utilities:
* Inject Custom CSS & JS: Inject styles or execute code on the active page in real time.
* Live HTML Editor: Toggle
document.designMode with a single click to edit any web page's content like a text document.The icon placeholder is a project by Pota12 and is licensed under CC BY-SA 4.0.
The extension is released under the GNU GPLv3-only License.
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Permissions and data
Required permissions:
- Block content on any page
- Display notifications to you
- Access browser activity during navigation
Optional permissions:
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.1
- Size
- 53.47 KB
- Last updated
- 22 days ago (Aug 30, 2026)
- Related Categories
- Version History
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