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Marketplace Tracker

Chrome extension by Sean Jackman · Lifestyle · Shopping

  • Trader

A Chrome extension in Lifestyle · Shopping with 15 users, barely installed. Audience over the last 30 days: +11.

Specific sites only: 2 match patterns.

What the developer says, and 2 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
15
Rating
not rated yet
Users, last 30 days
+11
Version
1.1
Updated in the store
2026-10-06
Published
2026-09-19
Manifest
V3
Browser access
3 permissions, 2 site patterns

How it has moved

Users
+11 since 06.10
4-15 · 16 readings
2026-10-06: released 1.1
  1. 2026-10-086
  2. 2026-10-098
  3. 2026-10-1310
  4. 2026-10-1611
  5. 2026-10-1813
  6. 2026-10-1912
  7. 2026-10-2011
  8. 2026-10-2112
  9. 2026-10-2211
  10. 2026-10-2413
  11. 2026-10-2512
  12. 2026-10-2813
  13. 2026-10-2912
  14. 2026-11-0114
  15. 2026-11-0415
  16. 2026-11-0515
Users
+14 since 20.09
1-15 · 21 readings
2026-09-20: appeared in the store2026-10-06: released 1.1
  1. 2026-09-201appeared in the store
  2. 2026-09-212
  3. 2026-09-254
  4. 2026-09-275
  5. 2026-09-284
  6. 2026-10-086
  7. 2026-10-098
  8. 2026-10-1310
  9. 2026-10-1611
  10. 2026-10-1813
  11. 2026-10-1912
  12. 2026-10-2011
  13. 2026-10-2112
  14. 2026-10-2211
  15. 2026-10-2413
  16. 2026-10-2512
  17. 2026-10-2813
  18. 2026-10-2912
  19. 2026-11-0114
  20. 2026-11-0415
  21. 2026-11-0515

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 2 match patterns.

  • https://www.facebook.com/*
  • https://api.marketplacetracker.ca/*
  • Sign you in with a Google account identity
  • Act on the current tab, but only after you click it activeTab
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 1.1

What changed recently

  1. Package size changed
  2. Released version 1.1 (was 1.0)
  3. Appeared in the store

The publisher

Sean Jackman.

Like this one

Listings the catalog judges closest in what they say they do.

  1. Smartbrowse: Facebook Marketplace Search Organizer Describes nearly the same job, smaller audience 79 users ★ 4.0
  2. Marketplace Hunter Describes nearly the same job, smaller audience 46 users ★ 5.0
  3. Marketplace Flipper Describes nearly the same job, smaller audience 81 users ★ 5.0
  4. MarketScout — Marketplace Search & Filters Describes nearly the same job, smaller audience 24 users
  5. FirstLook – Marketplace Alerts Describes nearly the same job, smaller audience 5 users ★ 5.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/epdfaioomcjhkcahcpmegnhhjagabbkm/badge.svg)](https://extops.dev/extensions/epdfaioomcjhkcahcpmegnhhjagabbkm)

HTML

<a href="https://extops.dev/extensions/epdfaioomcjhkcahcpmegnhhjagabbkm"><img src="https://extops.dev/extensions/epdfaioomcjhkcahcpmegnhhjagabbkm/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-04. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built