CookieSync: syncs cookies to localhost

Name: CookieSync: syncs cookies to localhost
Author: Roel Noten

This is an add-on which copies cookies to localhost. Target audience are developers that have code running on localhost which needs access to cookies set on other domains.

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Features & Capabilities

This is an add-on which copies cookies to localhost.

This addon monitors all incoming cookies from a user defined hostname regex and matching a user defined cookie name regex to copy them to the http://localhost domain.

It's primary here for developers that have code running on their localhost which connects to other services and need access to their cookies. The typical use case is a third-party login flow. In production the developer's code wil run on the same domain as the other services and have access to the cookies they set. But when code is running on localhost (during development), those cookies are not accessible in the browser. This add on makes those cookies available on localhost, so available to the developer's local code.

User Growth & Download Statistics

Add-on

By:

Roel Noten

Daily users:

12 -1

Version:

1.4 Last updated: 2021-11-07

Version code:

5320258

Creation date:

2021-11-06

Risk:

Permissions:

Size:

59.56KB

Email:

ro*****@gmail.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-14

Compare stats and ranking:

Ranking

# 30,163 ▼ 1,372

Other rankings

#71 in sync keyword 43 ▼ 4#143 in cookie keyword 51 ▼ 5#217 in target keyword 8 ▼ 10

For Developers

Monetize with App Pass Boost with Extension Booster

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:

Roel Noten

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/cookiesync/

Email:

ro*****@gmail.com

Website:

https://github.com/roelnoten/cookiesync

Is CookieSync: syncs cookies to localhost 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.

CookieSync: syncs cookies to localhost 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.

CookieSync: syncs cookies to localhost 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 **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****