Referer Modifier

Name: Referer Modifier
Rating: 4.0556 (36 reviews)
Author: Airtower

Modify the Referer header of HTTP requests: Remove, shorten, replace with custom data, or keep the Referer depending on the target domain.

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Features & Capabilities

Referer Modifier is a powerful Chrome extension that lets you customize the HTTP Referer headers sent with your web requests. Tailor the Referer header for each target domain by either keeping it intact, pruning to just the origin, removing it entirely, replacing it with custom data, or sending the origin of the target URL as the Referer.

This extension supports fully configurable rules that apply based on the domain, allowing you to enhance your privacy or meet site requirements effortlessly. It also ensures the JavaScript document.referrer property matches the modified header for consistency. Easily export and import your settings via JSON files to maintain configurations across devices or for backup purposes.

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

1.1.0 Last updated: 2022-11-09

Version code:

5483778

Creation date:

2017-11-03

Risk:

Permissions:

Size:

43.58KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-16

Compare stats and ranking:

Ranking

# 3,873 ▼ 4

Other rankings

#8 in modify keyword 44

#15 in reference keyword 34

#17 in target keyword 8 ▼ 1

#121 in property keyword 19 ▲ 1

#132 in configure keyword 29 ▼ 2

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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:

Airtower

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/referer-modifier/

Website:

https://github.com/airtower-luna/referer-mod

User Reviews

Referer Modifier is generally reliable and useful for controlling the referer header to bypass server blocks (e.g., 403). Users report it runs in the background for years and works well across privacy-conscious Firefox setups, including different browsers like Waterfox. It’s particularly helpful for sites like Pixiv that depend on referer checks, and it can save developers time by avoiding custom code. Some users note the UI is not polished and that the add-on could benefit from a dedicated settings panel, but overall it delivers practical referer control.

Pros

Reliable, long-running background operation.
Effectively controls the referer header to bypass 403s and access restrictions.
Works across privacy-focused configurations and different browsers (e.g., Waterfox).
Saves time by avoiding custom coding and fiddling with templates.

Cons

UI/UX is not polished and lacks a dedicated settings panel.

Recent reviews

by Gl*****, 2026-02-19

Works fine been running in the background for years.

by Ke*****, 2025-10-18

Works and is practical.

by Fi*****, 2025-04-26

View all user reviews ›

Is Referer Modifier 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.

Referer Modifier 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.

Referer Modifier 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 **** ********* *** **** **** *******