# stutter

> A Rapid Serial Visual Presentation (RSVP) extension for modern web browsers that allows for full page and selected text speed-reading of web content.

Canonical page: [https://chrome-stats.com/d/stutter](https://chrome-stats.com/d/stutter)

## Overview

- **ID:** `stutter`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** James Tomasino
- **Category:** appearance,other,games-entertainment
- **Daily users:** 1,013
- **Weekly downloads:** 6
- **Rating:** 4.57 / 5 (44 ratings)
- **Version:** 2.6.2
- **Last updated:** 2026-07-31
- **First published:** 2019-02-10
- **Size:** 1.09 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/stutter/)
- **Website:** [https://github.com/jamestomasino/stutter/issues](https://github.com/jamestomasino/stutter/issues)

## Description

**Stutter** is an open-source Rapid Serial Visual Presentation (RSVP) Chrome extension designed to help you read web content faster and more efficiently. With two convenient modes, you can either speed-read the entire page with one click or select specific text anywhere—even offline or local files—and quickly start reading via right-click context menu.

The extension offers intuitive controls such as pause/resume by clicking on the flashing text, adjusting reading speed settings, and repositioning the interface. Hotkeys make navigation seamless: restart, skip forward or backward, and increase or decrease reading speed on the fly. Privacy-conscious users will appreciate that Stutter collects no data and works fully offline.

Whether you're looking to improve reading speed, reduce eye strain, or simply consume more content in less time, Stutter provides an accessible and customizable solution compatible with modern browsers.

## Rankings

- #3,272 — Overall
- #304 — Games & Entertainment
- #52 — present
- #138 — term
- #152 — resume
- #229 — increase

## Permissions and access

### Permissions

- `contextMenus`
- `activeTab`
- `storage`
- `scripting`

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- This extension has low user count. Unpopular extensions 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).

## Review summary

Users praise stutter for speeding up reading and offering extensive customization. The core strengths repeatedly mentioned are speed-reading benefits, flexible options (keybindings, color themes, bar placement) and reliable, out-of-the-box performance for articles and studies. A few reviewers request additional features (pause functionality, quick dictionary lookup, more control over words-per-line) and report occasional issues on specific sites or PDFs, but no widespread defect is evident. Overall, it’s a versatile readability aid that many expect to grow with further tweaks.

### Pros

- Speed reading and improved reading efficiency for articles and studying.
- Extensive customization options (keyboard shortcuts, color themes, bar positioning).
- Stable, easy to use, and works well out of the box.
- Versatile for different reading contexts (studying and article browsing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/stutter)