Version 1.4.1 - Firefox Compatibility Update

### Technical Improvements
- Firefox Compatibility: Resolved runtime.installType API warnings for full Firefox support
- Enhanced Build Process: Improved minification and packaging for Firefox AMO compliance

### Features (Already Available)
- Russian Content Filter: Toggle to filter Russian-language domains and content (80+ sites)
- Custom Domain Blocking: Add unlimited custom site and language filters
- Real-time Filtering: Instant filter application without page reload
- Cross-platform Support: Works on Google and Bing search engines

### Privacy & Security
- Zero Telemetry: No data collection or external communication
- Local Storage Only: All preferences stored in your browser
- Minimal Permissions: Only requires storage and content script access

This update ensures seamless operation in Firefox while maintaining all existing functionality.

Version 1.2.1 introduces several improvements:

• Added option to remove default filters manually.
• Visual list of all active filters with easy delete button.
• Prevents adding duplicate filters with message notification.
• Unified popup style and logic across all supported browsers.
• Minor UI refinements.

Version 1.2 introduces several improvements:

• Added option to remove default filters manually.
• Visual list of all active filters with easy delete button.
• Prevents adding duplicate filters with message notification.
• Unified popup style and logic across all supported browsers.
• Minor UI refinements.