Chrome Developer Relations Chrome Extensions Best Practices

Comprehensive performance optimization guide for Chrome Extensions (Manifest V3), maintained by Chrome Developer Relations. Contains 40+ rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.

When to Apply

Reference these guidelines when:

• Writing new Chrome extension code
• Migrating from Manifest V2 to Manifest V3
• Optimizing service worker lifecycle and state management
• Implementing content scripts for page interaction
• Debugging performance issues in extensions

Rule Categories by Priority