LexMatrix Guard Desktop Protection

Parental control extension that blocks banned social platforms and enforces timed access on YouTube & Twitch.

LexMatrix Guard Desktop Protection pairs securely with your LexMatrix Guard Parent Admin Dashboard to provide safe, supervised browsing for children and students. Key Features: • Multi-Browser Family Protection: Seamlessly protects your child across multiple desktop browsers using a single family pairing code. • Real-Time Web Filtering: Enforces parent-configured website blocklists and bedtime curfews directly at the browser network layer. • Streaming & Video Time Allocations: Enforces daily screen time limits and scheduled browsing quotas on streaming video services. • Anti-Bypass Supervision: Automatically detects and prevents unauthorized private browsing or incognito evasion attempts. • Encrypted Security: Employs end-to-end cryptographic authentication and encrypted local configuration caches for tamper-resistant operation. Version 1.0.9 Improvements & Fixes: • Enhanced Screen Time Expiry Sync: Improved countdown precision and synchronization with the Parent Admin Dashboard, ensuring timed platforms lock immediately and smoothly upon session completion. • Monotonic Session State: Eliminated countdown jitter and timing resets when background policy synchronizations occur near timer expiration. • Instant Grant Responsiveness: Streamlined immediate timer activation when parents grant additional screen time via the Parent Admin Dashboard. • Stability & Performance: Optimized lightweight local storage and background policy synchronization across all supported Chromium browsers. Notes for Reviewer (v1.0.9 Update): • No new permissions requested. Manifest permissions remain identical to v1.0.8 (declarativeNetRequest, storage, alarms, tabs). • Bug fix release: Hardened local countdown synchronization in popup.js to eliminate a 1–2 second timing race condition when background policy polls coincide with timer expiry. • No remote scripts or unverified third-party libraries used. • Full compliance with Manifest V3 single-purpose and privacy policies maintained.