ProcrastiBlock от verbinski

ProcrastiBlock is an AI-powered browser extension that helps you stay focused by analyzing your open tabs and blocking or warning you about distracting sites.

Uses local AI to compare your current task with all open tabs
Automatically blocks or warns about irrelevant tabs
Timer mode lets you set a grace period before blocking
All processing happens locally—no data is sent to any server
Easily manage your blocklist and allowlist
Privacy-first: no tracking, no ads

Github: https://github.com/JoshGaviola/ProcrastiBlock