COS Cash-Back Tracker Firefox

COS Cash-Back Tracker

Track Capital One Shopping cash-back %, filter by store, find the top % deal, and get a daily email when your stores hit your thresholds.

Features & Capabilities

Hey Friends: COS Cash-Back Tracker shows you the best cash-back percentage for any store on Capital One Shopping, takes you straight to the deal, and can email you when the stores you care about hit the percentage you're waiting for! Radness!

User Growth & Download Statistics

Manifest V3 Add-on
By:
Nurse Wil
Daily users:
1
Version:
1.0.0 Last updated: 2026-06-11
Version code:
6296560
Creation date:
2026-06-07
Risk:
High risk impact High risk likelihood
Permissions:
Host permissions:
  • https://capitaloneshopping.com/*
  • https://*.capitaloneshopping.com/*
  • https://script.google.com/*
  • https://script.googleusercontent.com/*
Content scripts matches:
  • capitaloneshopping.com
  • *.capitaloneshopping.com
Size:
26.16KB
Email:
co*****@mwilstevens.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-14
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:
Nurse Wil
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/cos-cash-back-tracker/
Email:
co*****@mwilstevens.com
Website:
https://mwilstevens.com

Is COS Cash-Back Tracker 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.

COS Cash-Back Tracker 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.
  • Critical ******* ****** ** *** ********* ******** *********************** *********** *********************
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • Medium ******* ******* ************* ***** *** ** ******* *** **** ******* ****** ******** *******
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.

COS Cash-Back Tracker is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
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 COS Cash-Back Tracker Alternatives

Here are some Firefox add-ons that are similar to COS Cash-Back Tracker: