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Customaise: AI Userscript & Agentscript Manager. Powered by MCP & WebMCP

Chrome extension by Damian Szubertowicz · Productivity · Developer

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A Chrome extension in Productivity · Developer with 58 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
58
Rating
not rated yet
Users, last 18 days
-11
Version
1.3.4
Updated in the store
2026-09-11
Published
2025-10-13
Manifest
V3
Browser access
16 permissions, 2 site patterns

How it has moved

Users
-11 since 31.08
58-75 · 9 readings
2026-09-04: released 1.3.32026-09-11: released 1.3.4
  1. 2026-08-3169
  2. 2026-09-0370
  3. 2026-09-0472released 1.3.3
  4. 2026-09-0673
  5. 2026-09-0775
  6. 2026-09-0969
  7. 2026-09-1066
  8. 2026-09-1362
  9. 2026-09-1758
Users
-11 since 31.08
58-75 · 9 readings
2026-09-04: released 1.3.32026-09-11: released 1.3.4
  1. 2026-08-3169
  2. 2026-09-0370
  3. 2026-09-0472released 1.3.3
  4. 2026-09-0673
  5. 2026-09-0775
  6. 2026-09-0969
  7. 2026-09-1066
  8. 2026-09-1362
  9. 2026-09-1758

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
  • Attach to pages the way developer tools do debugger
  • See the address and title of every tab you have open tabs
Show the remaining 13
  • Manage your downloads downloads
  • Sign you in with a Google account identity
  • Run its own code on the pages it can access scripting
  • 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
  • Put data on your clipboard clipboardWrite
  • Add items to the right-click menu contextMenus
  • Show you notifications notifications
  • Run work in a hidden page offscreen
  • Store data in your browser storage
  • Store data in your browser without the usual size limit unlimitedStorage
  • Declares userScripts

The full permission history for this extension

Version history

  1. Version 1.3.4
  2. Version 1.3.3

What changed recently

  1. Package size changed
  2. Released version 1.3.4 (was 1.3.3)
  3. Released version 1.3.3 (was 1.3.2)

The publisher

Damian Szubertowicz. Listed website: customaise.com.

Like this one

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

  1. ScriptGenie AI：Generate Browser Scripts With AI Chat Describes nearly the same job, smaller audience 328 users ★ 5.0
  2. BrowseBot - AI Browser Assistant Describes nearly the same job, smaller audience 5 users
  3. Umbra - Browser Control for AI Agents Describes nearly the same job, smaller audience 4 users (last published figure)
  4. Browser for AI Agent Describes nearly the same job, smaller audience 25 users
  5. Brijio Describes nearly the same job, smaller audience 13 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.