Facebook Post & Comment Capture
v1.5.6
Capture Facebook posts and comment threads as high-resolution images with smart auto-expansion, clean avatar rendering, and one-click copy/download.
Safety Note: Only install scripts from sources you trust. Review the script source code before installing.
About this script
A powerful visual capture userscript built by Nisay Tech. Directly integrates into Facebook's native three-dots (...) context menu and offers an optional post-header quick camera button. Automatically unrolls hidden comments, nested replies, and truncated 'See more' text with a live progress HUD and early 'Capture Now' stop. Inlines CDN avatars as base64 Data URLs via GM_xmlhttpRequest to completely eliminate CORS canvas tainting. Outputs a crisp Retina 2x PNG ready to download or copy directly to your clipboard.
Features
- Full Post Card Capture: Traverses up to the full post container (author header, avatar, video/image media, reaction counters, and comments).
- Feed Post Auto-Comments Opener: Automatically clicks 'Comment' / 'X comments' to reveal and hydrate the comment thread if hidden on feed posts.
- Video Frame Snapshot: Automatically renders the active video frame to canvas to prevent blank/black video media rectangles.
- Dual Visual & Data Export: One-click export to PNG (2x Retina), Excel-ready CSV (UTF-8 BOM), and structured JSON format.
- Adaptive Auto-Scroll Engine: Nudges scroll position to trigger Facebook's virtual lazy loading for deep comment threads.
- Auto Force 'All Comments': Automatically detects and switches comment sorting from 'Most relevant' / 'Newest' to 'All comments' (supports English & Khmer).
- Dedicated Auto-Expand Feature: Standalone 1-click button (⏬) & 3-dots menu item to auto-expand comments without taking a screenshot.
- Native Context Menu Hook: Injects 'Capture Post & Comments' and 'Auto-Expand All Comments' directly into Facebook's 3-dots (...) post menu.
- Quick Post Header Actions: Optional discrete camera (📷) and unroll (⏬) icons on post headers for instant 1-click execution.
- Synthetic Mouse Dispatch & Fast Click: Simulates full mouse sequence (mouseover/down/up/click) and scroll-into-view for 100% trigger reliability on React 18.
- Safety Action Guard: Strict safety filter preventing accidental clicks on like, share, send, block, or delete buttons.
- Live Progress HUD: Real-time floating overlay with cycle counters, 'Capture Now' early render, and safe exit.
- Zero CORS Canvas Tainting: Pre-converts profile avatars and media into base64 Data URLs via GM_xmlhttpRequest.
- 2x Retina High-DPI Output: Crystal clear text and media rendering powered by html2canvas.
- Theme Adaptive: Automatically matches Facebook's active Light or Dark interface palettes.
Installation Instructions
1
Install Extension
Install the official Tampermonkey extension for Chrome, Edge, Firefox, Brave, or Safari.
2
Click Install
Click the "Install Script" button in the sidebar of this page.
3
Confirm in Tampermonkey
Tampermonkey will open an inspection tab showing the script headers and permissions. Click Install.
4
Ready to Use
Navigate to or refresh the target website to activate the userscript automatically.
Changelog
v1.5.6 2026-09-13
- Restored Horizontal Comment Actions Bar: Removed disruptive display: block and 100% width overrides across comment articles, restoring the native horizontal layout of Like, Reply, timestamp, and reaction icons.
- Clean Natural Text Wrapping: Restricted text wrapping rules strictly to [dir='auto'] overflow boundaries without altering native flex action items or button stacking.
v1.5.5 2026-09-13
- Fixed Multiple Photos Collage Grid Style Corruption: Preserved native overflow clipping and flex-layout rules on collage grid cells, preventing images from blowing out of their grid tiles and overlapping the reactions bar.
- Removed Disruptive Image Dimension Overrides: Eliminated rigid min-width and min-height rules on img elements in favor of native object-fit and responsive grid proportions.
v1.5.4 2026-09-13
- Permanent Post Photo Capture Fix: Replaced fragile array index mapping with 1-to-1 tag-based tracking between live DOM and clone, guaranteeing high-res photo URLs are accurately identified regardless of DOM trimming.
- CORS-Bypass ArrayBuffer Fetching: Upgraded GM_xmlhttpRequest to use arraybuffer with chunked binary conversion and stripped Origin headers to prevent Facebook CDN CORS 403 blocks on high-resolution post photos.
- Media Container Dimension Locks: Enforced explicit height and width preservation on media wrappers to prevent photos and collage boxes from collapsing to blank or solid placeholder rectangles.
- Comment Multiline Block Separation: Partitioned multiline comments into independent block div elements before rendering, eliminating html2canvas inline line overlap and baseline collision.
v1.5.3 2026-09-13
- Fixed Multiline Comment Overlapping & Collision: Repositioned render container inside active viewport (top:0 behind page) so Chromium computes full text line boxes instead of collapsing them at -99999px.
- Enforced Block Layout on Text Lines: Applied display: block !important, clear: both, and vertical spacing to all comment line containers and <br> elements, preventing lines from rendering on top of each other.
- Zero Coordinate Skewing: Passed scrollX: 0, scrollY: 0, x: 0, y: 0 explicitly to html2canvas to eliminate scroll offset displacement.
v1.5.2 2026-09-13
- Fixed Comment Text Collision & Overlapping: Removed destructive universal pre-wrap and min-width rules that caused comment message text to render directly on top of author names, badges, and star emojis.
- Natural Flex & Spacing Restoration: Confined overflow-wrap: anywhere and word-break: break-word strictly to message block containers, allowing inline spans and badges to compute their natural line heights.
v1.5.1 2026-09-13
- Post Photo Extraction & Inlining: Mapped cloned images to live DOM currentSrc and parsed srcset to resolve real high-resolution photo URLs instead of 20x20 blurred LQIP or empty placeholders.
- CSS Background-Image Inlining: Automatically scans and pre-converts post photos and collage grids rendered via CSS background-image into base64 Data URLs via GM_xmlhttpRequest.
- Media Container Collapse Prevention: Prevented aggressive height: auto unclamping on photo wrappers and media containers, preserving calculated dimensions so post photos never collapse to 0px.
- Resilient Image Fetching: Added Facebook Referer & Origin request headers, extended timeout to 25s for large post photos, and added fallback to browser-cached fetch.
v1.5.0 2026-09-13
- Standalone Auto-Expand Mode: Added dedicated 1-click post-header button (⏬) and 3-dots context menu command to auto-expand comments in-place without capturing.
- Enhanced Text Wrapping: Eliminated flex-shrink restrictions and enforced overflow-wrap: anywhere and word-break: break-word across all comment and text containers for flawless Khmer and English wrapping.
- Complete Grey Scrollbar & Footer Bar Removal: Suppressed faux scrollbar painting and cleanly severed trailing composer footer bars below the final comment.
v1.4.7 2026-09-13
- Top Comment Sticker Re-Hydration: Automatically scrolls comments container back to top before cloning so top comment stickers are fully mounted by React.
- Zero Left-Edge Text Artifacts: Eliminates 1px visually-hidden accessibility text spillage along the left card margin.
- Bottom Composer Cleanup: Completely strips the active user avatar and sticky composer wrapper from the bottom of dialog snapshots.
v1.4.6 2026-09-13
- Dynamic Computed Style Unclamping: Programmatically detects and unclamps all scroll containers (overflow-y: scroll/auto) and parent wrappers after mounting in the DOM.
- Complete Faux Scrollbar Elimination: Forces overflow: visible !important, height: auto !important, and max-height: none !important to prevent html2canvas from rendering grey scrollbars.
- Adaptive Canvas Window Height: Passes full calculated scrollHeight and dynamic windowHeight to html2canvas, eliminating bottom truncation on deep comment threads.
v1.4.5 2026-09-13
- Full Comment Thread Unclamping: Unclamps all internal scroll containers so all comments render from top to bottom without cutoffs.
- Zero Scrollbars: Completely eliminates grey native scrollbars from dialog captures.
- Eager Loading for Stickers: Disables browser lazy-loading in the offscreen render container, ensuring comment stickers and graphics render immediately.
v1.4.4 2026-09-13
- SVG Reaction Emojis Rasterization: Converts SVG data URLs (👍, ❤️, 😆) to crisp PNGs before rendering, eliminating html2canvas clipPath & gradient slicing bugs.
- Accurate Comment Opener: Reliably targets the post's 'Leave a comment' button when comments are not yet mounted on feed posts.
- Async Image Decoding: Awaits full image decode before canvas drawing for pixel-perfect clarity.
v1.4.3 2026-09-13
- Auto-Unroll Comments: Correctly triggers 'Comment' button or comment counter to open and mount collapsed comments on feed posts.
- SVG Story Avatars: Inlines avatars wrapped in SVG masks/story rings via GM_xmlhttpRequest base64 conversion.
- Header Cleanup: Removes header 'X' close/hide icon and menu triggers for clean publication-ready snapshots.
v1.4.2 2026-09-13
- Verified Feed Boundary Isolation: Correctly isolates single post cards without feed bleeding or capturing extra posts/stories.
- Modern Facebook Support: Added universal DOM detection for interfaces omitting role='article', locating post boundaries via aria-haspopup='menu'.
- Header Camera Button: Automatically placed directly beside the 3-dots (...) in the header on every post in the feed.
v1.4.0 2026-09-13
- Fixed context menu self-capture trap: Clicks on the 'Capture Post & Comments' menu item or popovers no longer overwrite the post target.
- Implemented direct role='feed' child traversal and FeedUnit mapping for 100% reliable post isolation.
- Stored 3-dots button origin post directly to guarantee the menu item captures the exact post it was opened on.
v1.3.0 2026-09-13
- Fixed post container detection: Resolved issue where only the post message text container was captured instead of the full post card.
- Added auto-open comments for feed posts where comment section is initially closed.
- Added HTML5 video frame snapshotting to render real video preview frames instead of empty boxes.
v1.2.0 2026-09-13
- Added dual data export: Export comments as UTF-8 BOM CSV (Excel compatible) and JSON.
- Integrated adaptive auto-scroll bounce to trigger Facebook lazy loading.
- Integrated synthetic mouse event dispatching and scroll-into-view for bulletproof clicking on React 18.
- Integrated comprehensive Khmer (ភាសាខ្មែរ) & English regex pattern recognition.
- Added strict safety action guards against accidental like/share/delete triggers.
v1.1.0 2026-09-13
- Added automatic 'All comments' comment sorting switch (bypasses Facebook's default 'Most relevant' truncation).
- Added Khmer & English multilingual detection for comment filter buttons.
- Added Tampermonkey menu command to toggle auto 'All comments' sorting.
v1.0.0 2026-09-13
- Initial release of Facebook Post & Comment Visual Capture.
- Implemented 3-dots post context menu integration and optional header quick button.
- Added safe auto-expansion runner with real-time status HUD.
- Added GM_xmlhttpRequest base64 avatar inlining to eliminate CORS canvas tainting.
- Added 2x Retina high-resolution PNG rendering and preview modal with clipboard copy.
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Script Info
Script ID
10007
Author
Created Date
2026-09-13
Updated Date
2026-09-13
Version
v1.5.6
Works On