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Chrome extension by Masahide Kojima · Productivity · Tools

A Chrome extension in Productivity · Tools with 54 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 1 screenshot

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

Users
54
Rating
not rated yet
Users, last 16 days
-1
Version
1.0
Updated in the store
2026-03-02
Published
2026-03-02
Manifest
V3
Browser access
14 permissions, 1 site pattern

How it has moved

Users
-1 since 31.08
50-55 · 9 readings
  1. 2026-08-3155
  2. 2026-09-0254
  3. 2026-09-0353
  4. 2026-09-0450
  5. 2026-09-0551
  6. 2026-09-0650
  7. 2026-09-0852
  8. 2026-09-1350
  9. 2026-09-1554
Users
-1 since 31.08
50-55 · 9 readings
  1. 2026-08-3155
  2. 2026-09-0254
  3. 2026-09-0353
  4. 2026-09-0450
  5. 2026-09-0551
  6. 2026-09-0650
  7. 2026-09-0852
  8. 2026-09-1350
  9. 2026-09-1554

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
  • Attach to pages the way developer tools do debugger
  • Read and change your browsing history history
Show the remaining 11
  • See the address and title of every tab you have open tabs
  • Block or redirect requests by rules it declares in advance declarativeNetRequest
  • Manage your downloads downloads
  • Sign you in with a Google account identity
  • See the email address of the signed-in Google account identity.email
  • Run its own code on the pages it can access scripting
  • Schedule work to run later alarms
  • 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

The full permission history for this extension

What changed recently

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

The publisher

Masahide Kojima publishes 4 listings we track, 131 users between them. Listed website: masahidekojima.com.

  1. Manus Memory Plus Masahide Kojima · Productivity · Tools · published 2025-12-05 63 users
  2. NewsSkins - ニュースをスキンで読む Masahide Kojima · Productivity · Tools · published 2025-12-24 10 users
  3. 構文時計 - 小泉進次郎 & 村上春樹 Masahide Kojima · Productivity · Tools · published 2026-03-01 4 users

Like this one

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

  1. Side Panel Clock Describes nearly the same job, smaller audience 37 users ★ 5.0
  2. JS Timer Describes nearly the same job, smaller audience 9 users ★ 5.0
  3. Sub Gemini Describes nearly the same job, smaller audience 17 users
  4. Sidebar Assistant for Gemini Describes nearly the same job, smaller audience 31 users
  5. Clock & Stopwatch Describes nearly the same job, smaller audience 9 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.

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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.