# lastChars

> Simple add-on that enables line numbers to the Ace editor on CodingBad.

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

## Overview

- **ID:** `lastchars`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Paviln
- **Category:** web-development,appearance
- **Version:** 1.0
- **Last updated:** 2019-09-14
- **First published:** 2019-09-13
- **Size:** 7.65 KB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/lastchars/)

## Description

lastChars is a simple Firefox add-on that enables line numbers in the Ace editor on CodingBad. Easily keep track of your code's line numbers with this convenient tool.

## Rankings

- #143,864 — Overall

## Permissions and access

### Content script matches

- `*.codingbat.com`

## 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/lastchars)