Canvas Tab Shield: Quiz & Test Detection Blocker

Block quiz and test activity logs. Hide tab switching, clicking out, and screen detection on Canvas for seamless split screen study.

Canvas Tab Shield: Quiz & Test Detection Blocker Stop Unfair Canvas Quiz Flags and Protect Your Browser Activity Log Privacy Did you know Canvas automatically logs "Stopped viewing the Canvas quiz taking page" whenever your browser window loses screen focus? Even when you are just reviewing permitted course material, normal everyday interruptions trigger red flags on your professor's SpeedGrader activity log: Clicking into allowed lecture slides or open book PDF notes Split screen studying or running dual monitors Low battery popups and operating system notifications Accidental trackpad gestures and changing music playlists The Canvas 30 second inactivity timeout when reading a long prompt Canvas Tab Shield is a lightweight client side extension that stops visibility and window blur listeners directly inside Chrome. It prevents Canvas from detecting when you click out of the test window, keeping your quiz activity log clean, private, and uninterrupted. Why Students Use Canvas Tab Shield Most AI quiz tools try to inject visible buttons directly into the Canvas page HTML, which can break site layouts, cause errors, and leave visual evidence if you ever need to take a screenshot during a technical dispute. Canvas Tab Shield takes a completely different approach by running silently in the background: Zero DOM footprint: Nothing is added or modified on the actual Canvas webpage. It runs in an isolated browser sandbox so page scripts cannot detect it. Dual engine support: Works automatically across both Canvas Classic Quizzes and Canvas New Quizzes. Split screen and dual monitor ready: Keep your lecture slides, notes, or reference docs open side by side without triggering a stopped viewing log when clicking between windows. Inactivity flag protection: Blocks background focus drops so you can pause to read long questions or work on scratch paper without stress. No login credentials required: The extension never asks for your Canvas login, student password, or university account info. Everything runs locally on your computer. Lightweight performance: Clean code under 50 KB with zero background lag and zero telemetry tracking. Test It First: Free Live Log Simulator You do not have to guess whether it works before a real test. Go to canvastabshield.com to try the free Live Activity Log Sandbox. You can toggle the shield on and off, click away from the quiz window, and watch our live event inspector show exactly how tab switches and focus drops get stopped before reaching Canvas servers. How To Get Started Add Canvas Tab Shield to Chrome and pin it to your toolbar. Activate your pass using the one time code sent to your email. Refresh Canvas and take your quiz. Protection starts automatically whenever a quiz begins, hiding tab switches and screen detection in real time. Frequently Asked Questions Can professors see Canvas Tab Shield in inspect element? No. Chrome extensions run content scripts in an isolated environment separate from the webpage JavaScript. Canvas scripts do not have permission to view your installed extensions or see other open tabs. Does this work on Canvas New Quizzes? Yes. Canvas Tab Shield supports both legacy Classic Quizzes action logs and New Quizzes SpeedGrader event audit trails. Does it work on LockDown Browser or Honorlock? No. Canvas Tab Shield is built strictly for regular web quizzes taken inside Google Chrome. Dedicated proctoring software runs external desktop programs outside of Chrome that turn off all browser extensions. What does my professor see on the quiz log? When Canvas Tab Shield is running, your instructor only sees standard progress milestones like Session started, sequential Answered question timestamps, and Submitted quiz. Red alert logs for stopped viewing are never sent. Privacy and Support Canvas Tab Shield is built to protect students from technical false positives, uncalibrated inactivity timers, and unfair activity log flags. Your browser focus and study workflow should remain private. Website and Live Sandbox: https://canvastabshield.com Email Support: support@canvastabshield.com Discord Community: https://discord.gg/STKbbX6qj