GFork

Facebook Switch to All comments (Userscript)

Automatically changes Facebook’s comment sorting from “Most relevant” to “All comments” whenever it detects the comment filter menu on posts.

What it does

• Watches the page for comment sections to appear (works with infinite scroll / dynamic loading).
• Opens the comment sorting dropdown if it’s set to “Most relevant”.
• Clicks “All comments” in the menu.
• Supports multiple Facebook UI languages (English, Spanish, French, German, Portuguese, Arabic, Hindi, Chinese, Japanese, Korean, Russian, Indonesian, Italian, Turkish).

Where it runs

• Matches: https://www.facebook.com/*
• Runs only in the top page (@noframes)
• Requires no special permissions (@grant none)

Notes / behavior

• Uses a MutationObserver to react to Facebook’s constantly-changing DOM.
• Attempts to locate Facebook’s comment container styling dynamically (so it’s less dependent on hard-coded class names).
• If Facebook changes labels/UI structure, the script may need updates.