# ZenReaderFx > Ttransforms cluttered web articles into a clean, distraction-free reading experience. Canonical page: [https://chrome-stats.com/d/zenreaderfx](https://chrome-stats.com/d/zenreaderfx) ## Overview - **ID:** `zenreaderfx` - **Platform:** Firefox - **Type:** Firefox add-on - **Status:** Available - **Publisher:** vidhyarthi - **Category:** feeds-news-blogging,appearance - **Daily users:** 1 - **Weekly downloads:** 1 - **Version:** 3.0.2 - **Last updated:** 2026-08-31 - **First published:** 2026-08-24 - **Size:** 1.02 MB - **Data as of:** 2026-09-09 - **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/zenreaderfx/) ## Description Article extraction — Uses Mozilla Readability to strip ads, navigation, and clutter from any article Bookmarks panel — Floating draggable outline built from headings (H1-H6), bookmark icons, active section highlight, scroll-to-top chevron Dark mode — Full dark theme (neutral grays, VS Code Dark+ syntax highlighting). Auto-detects system preference. Reading progress — Thin gradient bar at the top; hover anywhere on it to see percentage Syntax highlighting — Code blocks are highlighted with language-specific colored left borders (Python, C++, Rust, JS, etc.) Math rendering (KaTeX) — LaTeX math from MathJax/KaTeX pages is recovered and typeset as real equations (inline $…$ and display $$…$$), even on async MathJax pages where the source is normally lost PDF export via print dialog — Choose "Save as PDF" in Firefox's native print dialog; page size/margins carry over from the export dialog Markdown export — Save the cleaned article as a .md file, preserving headings, code fences (with language), lists, tables, and links Focus mode — Dims all but the block you're reading for a spotlight effect (Alt+O); remembered across reloads and never dims your print output Layout density — Compact / Comfortable / Spacious presets adjust line spacing and column width in one click (remembered across reloads) Custom CSS — Apply your own styles to the reader from the Appearance popover (remembered across reloads) Reading stats — Estimated read time + word count; live word count for any text you select Bundled fonts — All 13 font families work offline (latin subset, ~500KB total) Custom fonts — Adjust body and code font family, size, and weight from the Appearance popover Movable, groupable toolbar — Drag the toolbar anywhere by its grip handle (position remembered); minimize it into a gear button; buttons grouped View / Edit / Export Edit tips — Contextual hints shown when edit mode is first activated (Alt+T to toggle manually) Private browsing support — Works in private windows; history and reading positions are not saved Edit mode — Toggle pencil icon (or Alt+E) to enable hover-to-delete and double-click-to-edit. Alt+hover also works as a shortcut. Grouped deletion — Shift+click the delete button to remove all similar elements at once Undo support — Ctrl+Z to undo deletions, text edits, and image resizes (up to 50 actions) Image resize — Click any image to select it, then resize to 25%, 50%, 75%, or 100% width. Ctrl+click to select multiple images Keyboard shortcuts — Alt+? shows full cheatsheet. Alt+ B/D/F/E/O/T/P/S/M for all actions, Esc to close panels Smart page breaks — Headings stay with their content; code blocks and images don't split across pages Ligature-free code — Code blocks disable font ligatures to correctly display tokens like <|end_of_text|> Auto-collapsing UI — Right toolbar and banner fade/collapse after 10s of inactivity, maximizing reading space Responsive — Bookmarks panel adapts to narrow viewports (<700px becomes overlay) ## Rankings - #100,158 — Overall - #73 — popover ## Permissions and access ### Permissions - `activeTab` - `storage` - `scripting` ### Host permissions - `` ## Safety - **Risk impact:** Moderate risk impact - **Risk likelihood:** High risk likelihood ### Analysis details - Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site. - This extension was recently updated in the past month. New updates may not be stable or safe. > Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing). ## Similar extensions and apps - [Zenith Reader](https://chrome-stats.com/d/zenith-reader) — 1 users - [Zen Mode](https://chrome-stats.com/d/zen-mode-reader) — 8 users - [ZenReader](https://chrome-stats.com/d/zenreader) — 1 users, 5.00 / 5 - [Zen Reader](https://chrome-stats.com/d/zen-reader) — 5 users - [ZenPocket](https://chrome-stats.com/d/zenpocket) — 1 users, 1.00 / 5 - [Markdown Viewer](https://chrome-stats.com/d/markdown-viewer-chrome) — 15,464 users, 3.85 / 5 - [Zen Reader – ADHD & Focus Reading Engine](https://chrome-stats.com/d/zen-reader-focus) — 5 users, 4.00 / 5 - [Markdown Viewer Pro](https://chrome-stats.com/d/markdown-viewer-pro) — 10 users, 5.00 / 5 - [Tranquility Reader](https://chrome-stats.com/d/tranquility-1) — 41,000 users, 4.59 / 5 - [Unclutter — Modern Reader Mode](https://chrome-stats.com/d/lindylearn) — 447 users, 4.87 / 5 - [Skim — Markdown Viewer & Reader](https://chrome-stats.com/d/skim-markdown-viewer-reader) — 13 users - [Abstractor - Page Simplifier (Multilingual)](https://chrome-stats.com/d/page-abstractor) — 25 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/zenreaderfx)