# Typewriter Marker

> Replaces the gray background on typewriter.at with a colored line before the current letter. Simulates a more realistic environment.

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

## Overview

- **ID:** `typewriter-marker`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** RedSystems
- **Category:** other
- **Version:** 1.0
- **Last updated:** 2026-03-03
- **First published:** 2026-02-28
- **Size:** 12 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/typewriter-marker/)

## Description

Replaces the gray background on <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/153f92bb4fe847fba84c1db3756f72f2e60cba7c8cd7c21363e331ac36325a25/http%3A//typewriter.at" rel="nofollow">typewriter.at</a> with a colored line before the current letter. Simulates a more realistic environment. 100% client-side. Has made me significantly faster.

## Rankings

- #140,231 — Overall
- #149 — ai writer
- #155 — marker

## Permissions and access

### Permissions

- `storage`
- `activeTab`

### Content script matches

- `at4.typewriter.at`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
- 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).

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