cross-browser-compatibility

Installation
SKILL.md

Cross-Browser Extension Compatibility

Comprehensive guide to writing browser extensions that work across Chrome, Firefox, Safari, and Edge with proper feature detection and polyfills.

Overview

Browser extensions share a common WebExtensions API standard, but implementations differ significantly. This skill covers how to handle those differences.

This skill covers:

  • API compatibility matrices
  • Polyfill usage and patterns
  • Feature detection techniques
  • Browser-specific workarounds
  • Manifest differences

This skill does NOT cover:

Related skills
Installs
16
Repository
arustydev/ai
GitHub Stars
7
First Seen
Feb 21, 2026