Script Runner Firefox

Script Runner

Script injector for JavaScript and CSS!

Features & Capabilities

Script Runner is a powerful Chrome extension that allows users to enhance any website by injecting custom JavaScript and CSS scripts. With its easy-to-use interface, you can add, save, and manage site-specific scripts that activate automatically whenever you visit those sites. Additionally, Script Runner supports global scripts that run on all websites, giving you complete control over your browsing experience.

Access the console directly from the extension's dropdown menu, add your JavaScript or CSS code snippets, and save them instantly to start customizing your web pages in real-time. This intuitive tool is perfect for developers, designers, and power users who want to personalize and improve website functionality and style seamlessly.

User Growth & Download Statistics

By:
ankur1218
Daily users:
450 5
Rating:
5.00
(5)
Version:
2.1 Last updated: 2024-10-11
Version code:
5823793
Creation date:
2023-02-23
Risk:
Moderate risk impact Low risk likelihood
Permissions:
Content scripts matches:
  • <all_urls>
Size:
19.64KB
Email:
an*****@gmail.com
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-15
Compare stats and ranking:

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:
ankur1218
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/script-runner/
Email:
an*****@gmail.com

User Reviews

by Fi*****, 2025-10-13

by Fi*****, 2025-07-09

Managed to fix an issue within a page that I'dn't've been able to otherwise. Thanks a lot! :)
by Ki*****, 2025-06-12
View all user reviews ›

Is Script Runner 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.

Script Runner requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
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.

Script Runner 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.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
Extension Guard
Extension Guard

Discover every extension in use, analyze risks, and enforce blocking policies with Extension Guard

Secure Your Browser
Upgrade to see full risk analysis details

Best Script Runner Alternatives

Here are some Firefox add-ons that are similar to Script Runner: