Version 1.2 - Firefox Compatibility & Clean Interface

✨ New Features:
- Full Firefox compatibility
- Improved tab detection and content script communication

🔧 Improvements:
- Fixed Firefox compatibility issues
- Enhanced error handling and fallback mechanisms
- Improved reload functionality
- Better download rate persistence
- Clean, production-ready interface

🐛 Bug Fixes:
- Resolved "can't access property Symbol.iterator" error
- Fixed tab query issues in Firefox
- Improved content script injection reliability
- Enhanced download rate persistence