Prolific Shield: Auto-reject & Screen-out protection

Protects Prolific submissions by blocking automatic completion of studies, preventing auto-rejections and speed warnings.

v1.9 — Privacy Update 🛡️ Enhanced Privacy Protection The extension is now invisible to websites using multiple methods; study platforms and other sites can no longer detect that you have Prolific Shield installed. other updates: - (Fixed) A sound/notification plays when the timer ends — can be disabled in settings. - minor improvements /* End update note */ Prolific Shield is an essential companion tool for Prolific participants. Designed to protect your prolific submissions and ultimately helping to protect against account suspensions. Prolific Shield helps you avoid auto-rejections, speeding warnings, and automatic screen-out submissions which lead to former. Key Features - Estimated Completion Timer Prolific Shield reads the estimated completion time directly from the Prolific study page and sets up a countdown. It helps you pace your submission so you never submit a study too quickly. - Smart Auto-Start & Auto-Stop When enabled, the timer automatically starts when you click "Start study" and stops when you navigate back to your Prolific studies dashboard. - Submission Protection Prevents researchers from automatically submitting completion codes back to Prolific if you get screened out or if you complete a task "too quickly". - Submission Log & Completion Codes If a study tries to submit a code automatically, Prolific shield intercepts it, blocks the automatic submission, and saves the completion code in your logs. Once the timer reaches a safe duration, you can copy the code from the log and submit it manually. - Side Panel Integration Keep the timer visible alongside your study window. Configure the extension to open in Chrome's side panel by default for a clean, non-obtrusive workspace. Why Do You Need Prolific Defender? Avoid "Speeding" Rejections: Submitting studies faster than the minimum threshold set by researchers can lead to automated rejections and speed warnings. The built-in countdown keeps you aware of elapsed time. Defend Against Screen-outs: Some studies screen you out but attempt to submit a completion code anyway, which can flag your account for submitting invalid data. Prolific Shield blocks these automatic redirects. Manual Control: You decide exactly when a study is marked as complete.