A Chrome extension that displays country flag emojis next to Twitter/X usernames based on their account location, with powerful filtering capabilities and rate limit protection.
- Automatic Detection: Shows country flags next to Twitter usernames based on account location
- Smart Caching: 30-day cache prevents redundant API calls
- VPN Detection: Shows
⚠️ warning emoji when VPN is detected (infrastructure ready) - Unknown Handling: Displays ❓ for accounts without location or from non-country regions
- Selective Feed: Show only posts from selected countries
- Real-time Filtering: Instant updates when changing filter settings
- Unknown Support: Option to include/exclude accounts without location data
- Visual Feedback: Thanos snap-style dissolve animation when hiding posts
- Cinematic Effect: Filtered posts dissolve away with particle effects
- Smooth Performance: GPU-accelerated CSS animations at 60fps
- Smart Triggering: Only animates first hide to prevent spam
- Customizable: 1-second duration with progressive blur and fade
- Smart Tracking: Monitors API usage with 40/50 request buffer
- Viewport Loading: Only fetches location data for visible tweets
- Three Loading Modes:
- ⚡ Aggressive: Load all immediately (may hit rate limits)
- ⚖️ Balanced (Default): Viewport-only loading (prevents limits)
- 🐢 Conservative: Minimal API usage
- Twitter Sync: Displays Twitter's actual rate limit status (v1.5.2)
- Visual Status: Real-time progress bar with countdown timer
- Toast Notifications: User-friendly notifications when limit reached
- Auto-Detection: Matches your system theme automatically
- Manual Toggle: Click moon 🌙 / sun ☀️ button to switch
- Persistent: Remembers your preference across sessions
- Smooth Transitions: All colors smoothly transition when switching
-
Download the Extension
git clone git@github.com:kerpopule/X-Origin-Filter.git cd X-Origin-Filter -
Load in Chrome
- Open Chrome and navigate to
chrome://extensions - Enable "Developer mode" (toggle in top-right)
- Click "Load unpacked"
- Select the
X-Origin-Filterfolder - Extension icon should appear in toolbar
- Open Chrome and navigate to
-
Verify Installation
- Click extension icon to open popup
- Version should show 1.6.0
- Navigate to Twitter/X to see it in action
-
View Flags
- Navigate to Twitter/X (https://x.com or https://twitter.com)
- Flags automatically appear next to usernames
- Hover over flags to see country name
-
Enable Country Filter
- Click extension icon in toolbar
- Expand "Country Filter" section
- Toggle "Enable Filter" to ON
- Select countries you want to see
- Page reloads automatically
-
Adjust Loading Mode
- Click extension icon
- Expand "Loading Mode" section
- Choose your preferred mode:
- Balanced (Recommended): Viewport-only loading
- Aggressive: Load all immediately
- Conservative: Minimal usage
-
Monitor API Usage
- Click extension icon
- Expand "API Usage" section
- View current usage and reset time
- Progress bar changes color as limit approached
- Click moon 🌙 or sun ☀️ button in bottom-right of popup
- Automatically syncs with system theme
- Preference saved across sessions
- Extension shows "40/40 (Twitter)" when rate limited
- Countdown shows minutes until reset
- Toast notification appears when limit reached
- Automatically resumes after reset
- Posts dissolve away when filtered (Thanos snap effect)
- 1-second smooth animation with particle effects
- Only triggers on first hide (prevents spam)
All settings stored in chrome.storage.local:
| Setting | Key | Default | Description |
|---|---|---|---|
| Extension Enabled | extension_enabled |
true |
Master on/off switch |
| Filter Enabled | country_filter_enabled |
false |
Country filter toggle |
| Selected Countries | selected_countries |
All | Array of selected countries |
| Loading Mode | loading_mode |
'balanced' |
API loading strategy |
| Theme | popup_theme |
'auto' |
Dark/light mode preference |
| Location Cache | twitter_location_cache |
{} |
Cached location data |
Location Cache:
- Duration: 30 days for valid locations
- Null Cache: 24 hours for failed lookups
- VPN Cache: 24 hours for VPN status
- Structure:
{ "username": { "location": "United States", "expiry": 1735689600000, "cachedAt": 1732384000000, "isVPN": false, "vpnExpiry": 1732470400000 } }
Extension Structure:
├── manifest.json # Extension configuration (v3)
├── content.js # Main content script (~1600 lines)
├── pageScript.js # Page context script (API calls)
├── popup.html # Extension popup UI
├── popup.js # Popup logic (~510 lines)
├── countryFlags.js # Country → flag mapping (50+ countries)
├── background.js # Service worker
└── icons/ # Extension icons (16x16, 48x48, 128x128)
Endpoint: https://x.com/i/api/graphql/XRqGa7EeokUU5kppkh13EA/AboutAccountQuery
Rate Limit: 50 requests per 15 minutes (Twitter's limit)
Extension Limit: 40 requests per 15 minutes (10-request safety buffer)
Optimization Strategies:
- Caching: 30-day cache reduces API calls by 60%+
- Viewport Loading: Only fetches visible tweets (70% reduction)
- Request Queuing: 2-second delays between requests
- Smart Tracking: Syncs with Twitter's actual rate limit status
- Initial Page Load: 10-15 API calls (Balanced mode)
- Cache Hit Rate: 60%+ average
- Animation Performance: 60fps GPU-accelerated
- Memory Usage: ~5MB (including cache)
- Page Load Impact: <100ms additional load time
- ✨ Added dissolve animation when filtering posts
- 💫 Particle effects and smooth transitions
- 🎬 Cinematic 1-second animation
- 📝 Comprehensive documentation
- 🔄 Syncs with Twitter's actual rate limit status
- 📊 Shows accurate usage even after reinstall
- ⏸️ Visual pause indicator when rate limited
- 🎯 "(Twitter)" label shows source of limit info
- ❓ Regional locations now show Unknown flag
- 🗺️ Handles "East Asia & Pacific" and similar regions
- ✅ Filter works correctly with Unknown locations
- 📝 Improved location normalization
- 🚦 Smart rate limit tracking (40/50 buffer)
- 👁️ Viewport-based loading (Intersection Observer)
- 📊 Real-time rate limit display in popup
- 🎚️ Three loading modes (Aggressive/Balanced/Conservative)
- 🔔 Toast notifications for rate limit events
- 🌓 Dark mode support with system detection
- 🌙 Manual theme toggle
⚠️ VPN detection infrastructure- 💾 Persistent theme preference
- v1.3.x: Country filter improvements
- v1.2.x: Caching system
- v1.1.x: Flag display system
- v1.0.0: Initial release
See CHANGELOG.md for complete version history.
Problem: No flags appearing on Twitter/X
Solutions:
- Verify you're on https://x.com or https://twitter.com
- Check extension is enabled (click icon → verify toggle is ON)
- Reload the Twitter page (Ctrl+R or Cmd+R)
- Check console for errors (F12 → Console tab)
- Verify extension version is 1.6.0 or later
Problem: Getting "Rate limited" messages
Solutions:
- Open extension popup → API Usage section
- Check countdown timer (shows minutes until reset)
- Switch to Conservative mode to reduce API usage
- Wait for rate limit to reset (shown in popup)
- Clear extension cache if needed:
// In console on Twitter/X: chrome.storage.local.remove('twitter_location_cache')
Problem: Posts not being hidden
Solutions:
- Verify filter is enabled (toggle must be ON)
- Check that at least one country is selected
- Reload page after changing filter settings
- Check console for "Filter check" messages
- Verify flags are appearing (filter needs location data)
Problem: Dissolve animation not working
Solutions:
- Verify browser supports CSS animations (Chrome 51+)
- Check if extension was recently updated (reload page)
- Disable other extensions that might conflict
- Clear browser cache and reload
- Check console for animation errors
Contributions welcome! Please follow these guidelines:
-
Fork the Repository
git clone git@github.com:kerpopule/X-Origin-Filter.git cd X-Origin-Filter -
Make Changes
- Follow existing code style
- Test thoroughly on Twitter/X
- Update documentation as needed
-
Test Your Changes
- Load unpacked extension in Chrome
- Test on multiple Twitter pages
- Verify rate limit tracking works
- Check both light and dark modes
- Test filter with various country selections
-
Submit Pull Request
- Describe changes clearly
- Include screenshots/GIFs if UI changes
- Reference any related issues
- JavaScript: Use ES6+ features, async/await preferred
- Indentation: 2 spaces
- Comments: Explain "why", not "what"
- Console Logs: Use emoji prefixes (🚀, ✅, ❌, 🔍, 📊)
- Functions: Clear, descriptive names
MIT License - see LICENSE file for details.
- Original Repository: Twitter Account Location Flag
- Concept: Display country flags based on Twitter account location
- Fork Repository: X-Origin-Filter
- Enhanced By: @kerpopule
- ✨ Thanos snap dissolve animation (v1.6.0)
- 🚦 Comprehensive rate limit protection (v1.5.0)
- 🌓 Dark mode support (v1.4.0)
- 🎯 Country filtering system
- 📊 Real-time API usage tracking
- 🔄 Twitter rate limit sync (v1.5.2)
- ❓ Enhanced unknown location handling (v1.5.1)
- Twitter/X API for location data
- Chrome Extensions API
- All contributors and users
- GitHub Issues: Report a bug
- Feature Requests: Suggest a feature
- README.md: This file (comprehensive guide)
- CHANGELOG.md: Complete version history
- Version Docs: Individual feature documentation (DARK_MODE_VPN_v1.4.0.md, etc.)
- API Call Reduction: 70-80% vs naive implementation
- Cache Hit Rate: 60%+ average
- User Browsing Time: 4-5x longer before rate limit
- Performance Overhead: <100ms additional load time
- Memory Footprint: ~5MB including cache
- Countries: 50+ recognized countries
- Regions: Handled as "Unknown"
- VPN Detection: Infrastructure ready
- Cache Capacity: Unlimited (localStorage)
If you find this extension useful:
- ⭐ Star this repository
- 🐛 Report bugs and issues
- 💡 Suggest new features
- 🤝 Contribute code
- 📢 Share with friends
Made with ❤️ by @kerpopule
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