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PromoHerb: Automated Coupons & Promo Codes

Chrome extension by Domaining Central · Lifestyle · Shopping

  • Featured
  • Established publisher

A Chrome extension in Lifestyle · Shopping with 66 users, barely installed.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 3 screenshots

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

Users
66
Rating
not rated yet
Users, last 16 days
+1
Version
1.0.12
Updated in the store
2026-06-01
Published
2024-12-21
Manifest
V3
Browser access
7 permissions, 1 site pattern

How it has moved

Users
+1 since 31.08
61-68 · 8 readings
  1. 2026-08-3165
  2. 2026-09-0267
  3. 2026-09-0568
  4. 2026-09-0664
  5. 2026-09-0765
  6. 2026-09-0963
  7. 2026-09-1361
  8. 2026-09-1566
Users
+1 since 31.08
61-68 · 8 readings
  1. 2026-08-3165
  2. 2026-09-0267
  3. 2026-09-0568
  4. 2026-09-0664
  5. 2026-09-0765
  6. 2026-09-0963
  7. 2026-09-1361
  8. 2026-09-1566

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

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

  • Read and change cookies on the sites it can access cookies
  • See the address and title of every tab you have open tabs
  • Run its own code on the pages it can access scripting
Show the remaining 4
  • See when you navigate between pages webNavigation
  • Act on the current tab, but only after you click it activeTab
  • Schedule work to run later alarms
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Domaining Central publishes 7 listings we track, 551 users between them.

  1. XtractMail - Email Finder & Extractor Domaining Central · Productivity · Workflow · published 2025-03-04 166 users ★ 3.7
  2. Free Digital Marketing Strategies Books Domaining Central · Productivity · Education · published 2025-01-12 162 users
  3. AchiveViewer - Archived Emails for Gmail Domaining Central · Make Chrome Yours · Functionality · published 2024-12-23 125 users ★ 2.5
Show 3 more from this publisher
  1. Flippa Quick View Domaining Central · Productivity · Workflow · published 2025-01-16 30 users
  2. Shein Coupon Codes Finder | Shopin Domaining Central · Lifestyle · Shopping · published 2026-09-11 2 users
  3. ValueMyDomain: Domain Value Checker Domaining Central · Productivity · Tools · published 2024-10-26 audience not published ★ 4.0

Like this one

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

  1. Couponuts - Automatic Coupon & Voucher finder Describes nearly the same job, smaller audience 2k users ★ 4.7
  2. SmartShopping Demo MV3 Describes nearly the same job, smaller audience 12 users
  3. Disco - AI Promo Finder Describes nearly the same job, smaller audience 9 users
  4. Deal Seeker By TopVouchersCode Describes nearly the same job, smaller audience 297 users ★ 5.0
  5. Gener8 Genie Describes nearly the same job, smaller audience 3k users ★ 4.6

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.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.