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MetaMask Flask DEVELOPMENT BUILD

Chrome extension by metamask-labs · Productivity · Workflow

  • Trader

A Chrome extension in Productivity · Workflow with 6 000 users, a small but real audience.

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
6 000
Rating
3.8 (10 ratings)
Users, last 17 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
13.48.0-flask.0
Updated in the store
2026-09-14
Published
2021-12-21
Manifest
V3
Browser access
12 permissions, 6 site patterns

How it has moved

Users
unchanged since 01.09
6k · 2 readings
2026-09-07: released 13.47.0-flask.02026-09-14: released 13.48.0-flask.0
  1. 2026-09-016k
  2. 2026-09-176k
Rating
unchanged since 01.09
reviewsrating 3.80 · 2 readings
2026-09-07: released 13.47.0-flask.02026-09-14: released 13.48.0-flask.0
  1. 2026-09-01reviews10rating3.80
  2. 2026-09-17reviews10rating3.80
Users
unchanged since 01.09
6k · 2 readings
2026-09-07: released 13.47.0-flask.02026-09-14: released 13.48.0-flask.0
  1. 2026-09-016k
  2. 2026-09-176k
Rating
unchanged since 01.09
reviewsrating 3.80 · 2 readings
2026-09-07: released 13.47.0-flask.02026-09-14: released 13.48.0-flask.0
  1. 2026-09-01reviews10rating3.80
  2. 2026-09-17reviews10rating3.80

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
  • Watch the network requests your browser makes webRequest
  • Sign you in with a Google account identity
Show the remaining 9
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Schedule work to run later alarms
  • Put data on your clipboard clipboardWrite
  • Show you notifications notifications
  • Run work in a hidden page offscreen
  • 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 13.48.0-flask.0
  2. Version 13.47.0-flask.0

What changed recently

  1. Package size changed
  2. Released version 13.48.0-flask.0 (was 13.47.0-flask.0)
  3. Package size changed
Show the remaining 1
  1. Released version 13.47.0-flask.0 (was 13.46.1-flask.0)

The publisher

metamask-labs.

Like this one

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

  1. MetaMask Describes nearly the same job, with a large installed audience 12.0M users ★ 2.7
  2. SafePal Extension Wallet Describes nearly the same job, with a large installed audience 100k users ★ 3.5
  3. Fluent Describes nearly the same job, with an established audience 20k users ★ 4.0
  4. Rainbow Describes nearly the same job, with an established audience 90k users ★ 4.0
  5. Scramble Describes nearly the same job, smaller audience 117 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.

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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.