Claude Code + Chrome Extension

Built a chrome extension with Claude Code?
We'll make it production-ready.

Chrome extensions have unique security considerations — they run in users' browsers with elevated permissions, can access browsing data, and must pass Chrome Web Store review. AI tools can scaffold an extension quickly, but the security requirements, Manifest V3 compliance, and store submission guidelines need careful attention.

TypeScriptPythonReactNext.jsNode.js

Chrome Extension challenges in Claude Code apps

Building a chrome extension with Claude Code is a great start — but these challenges need attention before launch.

Manifest V3 compliance

Chrome is migrating to Manifest V3, which changes how extensions work — service workers instead of background pages, restricted remote code execution, and new permission models. AI tools sometimes generate Manifest V2 code that won't be accepted.

Permission minimization

Chrome Web Store reviews extensions for excessive permissions. Request only the permissions you actually need. AI tools often request broad permissions ('tabs', 'storage', 'activeTab') when narrower permissions would suffice.

Content Security Policy

Extensions must comply with strict CSP rules. No inline scripts, no eval(), no remote code loading. AI-generated code sometimes violates these rules, causing the extension to fail silently.

Data privacy

Extensions that access browsing data must have a privacy policy, explain what data is collected, and handle it securely. Chrome Web Store requires this disclosure for approval.

Cross-browser compatibility

If you want to publish on Firefox, Safari, and Edge too, your extension needs to handle API differences between browsers. AI tools usually target Chrome only.

What we check in your Claude Code chrome extension

Manifest V3 compliance — service workers, permissions, CSP
Permission minimization — only requesting what's needed
Content security — no eval(), no inline scripts, no remote code
Data handling — privacy policy, secure storage, no unnecessary collection
Error handling — graceful failures, no silent errors
Performance — efficient background processing, minimal memory usage
Chrome Web Store compliance — metadata, screenshots, descriptions

Common Claude Code issues we fix

Beyond chrome extension-specific issues, these are Claude Code patterns we commonly fix.

highSecurity

Over-permissive CORS configuration

Claude Code sometimes sets CORS to allow all origins during development and forgets to restrict it for production, allowing any website to make API requests.

highSecurity

Missing rate limiting

API endpoints are generated without rate limiting, allowing attackers to brute-force auth endpoints or abuse expensive operations.

mediumCode Quality

Over-engineered abstractions

Claude Code creates multiple layers of abstraction, generic utilities, and design patterns for simple problems — making the code harder to understand and maintain.

mediumBugs

Edge cases in complex logic

While Claude handles the main flow well, complex conditional logic sometimes has edge cases that produce incorrect results with unusual inputs.

Start with a self-serve audit

Get a professional review of your Claude Code chrome extension at a fixed price.

Security Scan

Black-box review of your public-facing app. No code access needed.

$19
  • OWASP Top 10 checks
  • SSL/TLS analysis
  • Security headers
  • Expert review within 24h
Get Started

Code Audit

In-depth review of your source code for security, quality, and best practices.

$19
  • Security vulnerabilities
  • Code quality review
  • Dependency audit
  • AI pattern analysis
Get Started
Best Value

Complete Bundle

Both scans in one package with cross-referenced findings.

$29$38
  • Everything in both products
  • Cross-referenced findings
  • Unified action plan
Get Started

100% credited toward any paid service. Start with an audit, then let us fix what we find.

Frequently asked questions

Can I build a chrome extension with Claude Code?

Claude Code is a great starting point for a chrome extension. It handles the initial scaffolding well, but chrome extension apps have specific requirements — manifest v3 compliance and permission minimization — that need professional attention before launch.

What issues does Claude Code leave in chrome extension apps?

Common issues include: over-permissive cors configuration, missing rate limiting, over-engineered abstractions. For a chrome extension specifically, these issues are compounded by the need for manifest v3 compliance.

How do I make my Claude Code chrome extension production-ready?

Start with our code audit ($19) to get a clear picture of what needs fixing. For most Claude Code-built chrome extension apps, the critical path is: security review, then fixing core flow reliability, then deployment. We provide a fixed quote after the audit.

Get your Claude Code chrome extension production-ready

Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.

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