Per-Site CSS Injector

Name: Per-Site CSS Injector
Rating: 5 (1 reviews)
Author: matt chavoshi

By: matt chavoshi Add-on

Injects custom CSS to specific websites.

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Install

Features & Capabilities

The ultimate Custom CSS Injector extension allows you to effortlessly change the look and feel of any website by saving persistent custom styles for each domain. Key Features: * Site-Specific Styling: The CSS you define is only active for that specific domain (e.g., styles for grok.com will not affect gemini.google.com).

Persistent Storage: Your styles are saved directly in the browser and are automatically applied every time you visit the site.
Easy-to-Use: Simply click the extension icon, enter your desired CSS code, and hit the save button.
Set It and Forget It: Once saved, you never have to repeat the process.

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

1.0 Last updated: 2025-11-04

Version code:

6066187

Creation date:

2025-11-01

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

32.52KB

Email:

ch*****@gmail.com

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-14

Compare stats and ranking:

Ranking

# 26,672 ▲ 753

Other rankings

#136 in inject keyword 14 ▲ 7

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:

matt chavoshi

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/per-site-css-injector/

Email:

ch*****@gmail.com

User Reviews

very simple, suits perfectly my needs

by ak*****, 2026-01-21

View all user reviews ›

Is Per-Site CSS 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.

Per-Site CSS Injector 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.

Per-Site CSS Injector is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

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