BlockerDOOM — Focus & Attention Filter

You define what belongs in your digital environment. BlockerDOOM enforces it across YouTube, search and social feeds — on-device.

BlockerDOOM is a privacy-first content filtering and focus management extension that lets you decide what belongs in your digital environment. Define your own rules once, and BlockerDOOM enforces them automatically across the web — entirely on your device. You own every rule. BlockerDOOM ships with nothing enabled and nothing pre-configured. Every website, keyword, channel, or filter is created by you, and every module can be enabled or disabled independently without losing your configuration. WHAT YOU CAN FILTER 🛡 Custom Content Rules Create your own filtering rules using websites, keywords, channels, regular expressions, and OCR-based text detection. ⚠ Violence Filter Hide violent, graphic or disturbing content—including crime, gore and similar material—across supported websites, search engines and social platforms. 📰 News Filter Hide news sources by domain or keyword. Disabled by default. 🤖 AI Filter Hide AI-generated search experiences such as Google's AI Overview and AI Mode with no content flash. ▶ YouTube Filter Home, Search, Shorts, Subscriptions, Related Videos and Comments. Videos can be removed using: Title Description Channel Thumbnail OCR Blocked content disappears completely without leaving empty spaces. 🔍 Search & Social Filter Google Search, Reddit, X, Instagram, Quora and LinkedIn using platform-specific or global keyword lists. 🌐 Website Blocking Prevent selected domains from loading entirely using Declarative Net Request. No redirects or warning pages. FOCUS MODE Stay productive with a built-in Pomodoro timer (25/5, 50/10 or custom), task manager and focus dashboard. During a focus session, BlockerDOOM can temporarily block distracting websites until the timer finishes. Track: Focus time Completed sessions Tasks Filtered distractions BUILT FOR PRIVACY Everything runs locally on your device. No accounts No cloud services No analytics No telemetry No tracking Your browsing history, rules and configuration never leave your computer. Privacy Policy: https://blockerdoom.com/privacy/ Compatible with Chrome, Microsoft Edge and Firefox.