# Rob's Code Injector

> Inject custom JavaScript, CSS, and HTML into web pages by URL rules.

Canonical page: [https://chrome-stats.com/d/rob-s-code-injector](https://chrome-stats.com/d/rob-s-code-injector)

## Overview

- **ID:** `rob-s-code-injector`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Rob Omer
- **Category:** web-development,privacy-security,appearance
- **Daily users:** 8
- **Weekly downloads:** 1
- **Version:** 1.2.2
- **Last updated:** 2026-02-27
- **First published:** 2026-02-23
- **Size:** 194 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/rob-s-code-injector/)
- **Website:** [https://github.com/omermedia/codeInjector](https://github.com/omermedia/codeInjector)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/rob-s-code-injector/privacy/](https://addons.mozilla.org/firefox/addon/rob-s-code-injector/privacy/)

## Description

Rob's Code Injector lets you run your own JavaScript, CSS, and HTML on specific websites. You define rules by host (e.g. <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/2141eac2eacda036b00afc30fd0a7e6f24e9bddf402cf4393fe5144f468147e8/http%3A//example.com" rel="nofollow">example.com</a> or *.example.com) or by URL regex, choose include/exclude lists, and pick whether to run at page load or not

## Rankings

- #36,922 — Overall
- #29 — inject
- #153 — javascript
- #173 — code
- #245 — codes

## Permissions and access

### Permissions

- `tabs`
- `activeTab`
- `storage`
- `webNavigation`
- `scripting`

### Host permissions

- `<all_urls>`

## Safety

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

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- 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/rob-s-code-injector)