Facebook Anti-Refresh Userscript

This userscript prevents Facebook from auto-refreshing your feed when you switch tabs. It keeps your place in the timeline instead of that annoying refresh that makes you lose everything you were reading.

Features

• 🚫 No more losing your place in the feed
• 💯 Works with latest Facebook interface
• 🌐 Supports multiple Facebook domains
• ⚡ Lightweight and efficient

Installation

1. Install Tampermonkey or Violentmonkey
2. Click Install on this page
3. Script runs automatically on Facebook

How It Works

• Overrides Page Visibility API
• Intercepts refresh network requests
• Blocks visibility events
• Tracks user activity

Changelog

Version 1.2 (June 2, 2025)

🆕 What's New

Fixed the script completely freezing Facebook. Yeah, that was bad.

🐛 Bug Fixes

• Fixed "Cannot assign to read only property 'reload'" error - Removed the location.reload override that was causing TypeError spam in console
• Fixed Facebook becoming unresponsive - Removed overly aggressive MutationObservers that were watching every single DOM change
• Fixed performance issues - Removed the 5-second re-application loop that was hammering the CPU for no reason

🔧 Technical Changes

• Simplified network interception - Now only blocks specific refresh endpoints instead of analyzing every request to Facebook
• Removed unnecessary features that were causing more harm than good:
  • WebSocket interception (wasn't helping with refresh anyway)
  • Service Worker blocking (overkill)
  • Aggressive script injection monitoring
• Better error handling - Added try-catch blocks so one error doesn't break everything
• Lighter activity tracking - Only tracks essential user interactions (click, scroll, keypress)

📈 Performance

• Before: Facebook freezing, console errors, high CPU usage
• After: Smooth experience, minimal overhead, no errors

💡 Developer Notes

Turns out trying to block EVERYTHING Facebook does is a terrible idea. This version takes a much more targeted approach - only blocking what's actually needed to prevent the refresh. If it works, don't touch it!

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Version 1.1 (Original)

⚠️ Known Issue

To close Facebook posts, use ESC key or X button only. Clicking outside triggers redirect to top of feed. Script prevents refresh but not the redirect.

See screenshot below for details.