a0-browser-ext
Create, inspect, install, and safely maintain Chrome extensions for Agent Zero's built-in Browser plugin.
Best for Agent Zero usersWorks with GitHub
⌘source
- author
@agent0ai- language
- Python
★17kstars
3.5kforks
Apr 29, 2026
✦overview.md
Key Features
- ·Create Chrome extensions from scratch
- ·Inspect and modify existing extensions
- ·Install from Chrome Web Store as unpacked
- ·Manage extension paths for Docker runtime
- ·Safety checks and permission review
Use Cases
- →Building a custom extension to automate browser tasks in Agent Zero
- →Debugging an existing extension to fix compatibility issues
- →Loading a web store extension into Agent Zero's browser sandbox
- →Reviewing extension permissions before installation
Best for
- ✓Agent Zero users
- ✓Chrome extension developers
- ✓Automated browser workflows
Not ideal for
- !Production deployment
- !Non-Chrome browsers
- !One-off browser tasks
FAQs
name
a0-browser-ext
description
Create, inspect, install, and safely maintain Chrome extensions for Agent Zero's built-in Browser plugin.
tags:["agent-zero","browser","chrome-extension","playwright","manifest-v3"]
Agent Zero Browser Extensions
Use this skill when the user wants to create a new Browser extension, modify an existing extension, or install a Chrome Web Store extension for Agent Zero's direct _browser plugin.
Operating Model
- Agent Zero loads Browser extensions from unpacked directories.
- Create user-owned extensions under
/a0/usr/browser-extensions/<extension-slug>/. - Browser extension paths must be visible inside the Docker runtime. Prefer
/a0/usr/browser-extensions/...paths over host-only paths. - The Browser puzzle menu can open "My Browser Extensions", seed a "+ Create New with A0" request, and install Chrome Web Store URLs.
- Chrome Web Store installs are converted into unpacked extension folders before Browser can load them.
- Extension setting changes restart active Browser runtimes so Playwright can relaunch Chromium with the extension arguments.
Safety First
Browser extensions run inside the Docker browser sandbox, but malicious or buggy extensions can still damage that sandboxed environment, corrupt browser profiles, exfiltrate page data visible to the Browser, or make browsing unreliable.
Before creating or installing an extension:
$install
1-click copynpx skills add agent0ai/agent-zero --skill a0-browser-extSafety assessment
★
Clarity score
How clear and easy to understand the SKILL.md instructions are, rated from 1 to 5.
4/ 5
very goodClear and well structured, with only minor parts that might need a second read.
◎
Actionability score
How directly an agent can act on the SKILL.md instructions, rated from 1 to 5.
4/ 5
highMostly actionable with clear steps; only a few small gaps remain.