# Shark Javascript Injector

> Evaluate Javascript code on pages at a given domain without being blocked by CSP. Create custom shortcuts with JS.

Canonical page: [https://chrome-stats.com/d/shark-javascript-injector](https://chrome-stats.com/d/shark-javascript-injector)

## Overview

- **ID:** `shark-javascript-injector`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Artur Rosa
- **Category:** web-development,appearance
- **Daily users:** 32
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0.2
- **Last updated:** 2021-12-22
- **First published:** 2021-07-27
- **Size:** 415 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/shark-javascript-injector/)

## Description

Shark Javascript Injector is a powerful Chrome extension designed to empower developers and power users by enabling the evaluation and injection of custom Javascript code on specified domains, even when restricted by Content Security Policies (CSP). This extension allows seamless interaction with otherwise blocked scripts, enhancing productivity and browser customization.

Users can create personalized shortcuts with Javascript to enhance navigation and functionality on popular sites. For example, custom arrow navigation scripts are available for GitHub notifications and Harvest time tracking, allowing smooth keyboard navigation. Shark Javascript Injector provides flexibility to execute tailored scripts safely and effortlessly, improving user experience and efficiency across web applications.

## Rankings

- #19,821 — Overall
- #21 — javascript
- #34 — inject
- #103 — script

## Permissions and access

### Permissions

- `storage`
- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Low 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 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/shark-javascript-injector)