Verified-Only Filtering: A new toggle in the popup allows users to exclusively filter posts from verified accounts based on country. This provides more granular control over content visibility.
Auto-Block Feature: Introduces an "Auto-Block" option that permanently blocks Twitter accounts matching the selected country filters. This feature includes a prominent confirmation modal to prevent accidental activation, emphasizing its irreversible nature.
Enhanced User Data Fetching: The pageScript.js now fetches both the user's location and their verified status (is_blue_verified) from Twitter's API, enabling the new verified-only filtering.
New Welcome Modal: A first-time user experience modal has been added to onboard new users, highlighting key features like country flags, filtering, and verified-only mode.
Priority Feedback System: Integrated a "priority feedback" system via donations on Ko-fi. Users can include a ticket ID (generated after sending feedback) in their donation message to potentially expedite their request.

Changelog V1.1.0
All notable changes to the X/Twitter Country Flags & Blocker extension update V1.1.0.

🚀 New Features
Searchable Country List: Added a search bar inside the popup dropdown to easily find countries when adding them to the blocklist.
In-App Feedback System: Added a feedback form directly in the popup to report bugs or suggest features without leaving the extension.
Update Notifier: The extension now checks GitHub for newer versions and displays a banner or modal if an update is available (useful for manual installs).
Developer Mode: Added a hidden debug panel (activates by clicking the "Location Flag & Blocker" header 5 times) to test updates and clear cache.
⚡ Improvements & Performance
Batch API Submissions: Implemented a writeBuffer system in the content script. Instead of sending data to the cloud API one by one, requests are now batched (every 30 seconds or 50 items), significantly reducing network traffic.
Dynamic GraphQL Detection: The pageScript now "sniffs" the URL to dynamically detect the correct Twitter/X GraphQL Query ID. This makes the extension much more resilient to X.com silent updates.
Header Fallback Mechanism: Added a fallback method to manually construct authentication headers from cookies (ct0 token) if request interception fails.
CSS Injection: Styles for flags (#tf-style) are now injected immediately into the document head to prevent layout shifts.
🛠 Fixes & Stability
Context Invalidation Handling: Added checks (isContextInvalid) throughout the codebase to prevent error logs and crashes when the extension is updated or reloaded while tabs remain open.
Stale Cache Logic: Introduced a CACHE_STALE_DAYS (90 days) setting to keep data longer while prioritizing fresh fetches.
Queue Management: Improved the logic for the Cloud vs. Twitter API processing queues to prevent race conditions.
⚙️ Technical
Manifest V3 Updates: Added a background service worker (background.js) to handle initialization tasks.
Permissions: Updated host_permissions to include the cloud worker API and GitHub raw content (for update checks).
Browser Specific: Updated Gecko/Firefox specific settings and ID.