Ext Ops Panel
Open the app

郑北工具

Chrome extension by 郑北先生 · Productivity · Developer

A Chrome extension in Productivity · Developer with 6 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 5 screenshots

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

Users
6
Rating
5.0 (1 ratings)
Users, last 10 days
+6
Rating, last 30 days
Not watched long enough to say
Version
0.1.1
Updated in the store
2026-09-12
Published
2026-09-07
Manifest
V3
Browser access
9 permissions, 4 site patterns

How it has moved

Users
+6 since 08.09
0-6 · 5 readings
2026-09-08: appeared in the store2026-09-12: released 0.1.1
  1. 2026-09-080appeared in the store
  2. 2026-09-092
  3. 2026-09-133
  4. 2026-09-155
  5. 2026-09-176
Rating
+5.00 since 08.09
reviewsrating 0.00-5.00 · 5 readings
2026-09-08: appeared in the store2026-09-12: released 0.1.1
  1. 2026-09-08reviews0rating0.00appeared in the store
  2. 2026-09-09reviews0rating0.00
  3. 2026-09-13reviews0rating0.00
  4. 2026-09-15reviews0rating0.00
  5. 2026-09-17reviews1rating5.00
Users
+6 since 08.09
0-6 · 5 readings
2026-09-08: appeared in the store2026-09-12: released 0.1.1
  1. 2026-09-080appeared in the store
  2. 2026-09-092
  3. 2026-09-133
  4. 2026-09-155
  5. 2026-09-176
Rating
+5.00 since 08.09
reviewsrating 0.00-5.00 · 5 readings
2026-09-08: appeared in the store2026-09-12: released 0.1.1
  1. 2026-09-08reviews0rating0.00appeared in the store
  2. 2026-09-09reviews0rating0.00
  3. 2026-09-13reviews0rating0.00
  4. 2026-09-15reviews0rating0.00
  5. 2026-09-17reviews1rating5.00

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 what you have copied clipboardRead
  • 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 6
  • Act on the current tab, but only after you click it activeTab
  • Put data on your clipboard clipboardWrite
  • Add items to the right-click menu contextMenus
  • Open a panel beside the page sidePanel
  • Store data in your browser storage
  • Store data in your browser without the usual size limit unlimitedStorage

The full permission history for this extension

Version history

  1. Version 0.1.1

What changed recently

  1. Package size changed
  2. Released version 0.1.1 (was 0.1.0)
  3. Appeared in the store

The publisher

郑北先生.

Like this one

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

  1. MV3前端助手 Describes nearly the same job, smaller audience 9 users
  2. 办公小助手 Describes nearly the same job, smaller audience 8 users
  3. FeHelper - JSON格式化、编解码、二维码、开发者工具箱 Describes nearly the same job, with a large installed audience 200k users ★ 4.6
  4. FE Dev Tools Describes nearly the same job, smaller audience 15 users
  5. 雨辰辰-开发工具助手 Describes nearly the same job, smaller audience 4 users

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.