Simple JavaScript Injector

Name: Simple JavaScript Injector
Rating: 3.6667 (3 reviews)
Author: Joel Perpetua

By: Joel Perpetua

This addon creates a small popup that lets you paste some JS code and inject it into the page you are currently seeing.

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Features & Capabilities

Simple JavaScript Injector is a Chrome extension that allows users to easily inject custom JavaScript code into the web page currently open in their browser. It features a small popup interface where you can paste your JS code and execute it immediately, simplifying testing and scripting tasks.

This extension is an adaptation of a Firefox version of the original "JS injector" Chrome extension created by Daniel Han. It inherits the core functionality from the open-source project by hex0cter, ensuring a reliable and streamlined experience for developers, testers, and power users who want to manipulate web pages on the fly by running custom scripts directly in the browser.

User Growth & Download Statistics

Add-on Developer Tools Programming

By:

Daily users:

Rating:

Version:

1.1 Last updated: 2022-12-26

Version code:

5504420

Creation date:

2021-06-23

Risk:

Permissions:

activeTab
storage
tabs
http://*/
https://*/

Size:

69.77KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-03

Compare stats and ranking:

Ranking

# 8,079 ▲ 24

Other rankings

#14 in inject keyword 13 #14 in javascript keyword 41 #46 in script keyword 27 #79 in simple keyword 39 ▼ 1#166 in scrape keyword 55 ▼ 3

For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Joel Perpetua

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/simple-javascript-injector/

Website:

https://github.com/joeperpetua/simple-js-injector

User Reviews

by Fi*****, 2024-03-30

View all user reviews ›

Is Simple JavaScript Injector Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Simple JavaScript Injector requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Simple JavaScript Injector has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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