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Chrome extension by laboratorio21 · Productivity · Tools

A Chrome extension in Productivity · Tools with 3 users, barely installed.

Specific sites only: 1 match pattern.

What the developer says, and 1 screenshot

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

Users
3 (the store no longer states an audience; this is the last figure it published)
Rating
not rated yet
Users, last 17 days
unchanged
Version
0.1.0
Updated in the store
2026-08-12
Published
2026-08-12
Manifest
V3
Browser access
1 permission, 1 site pattern

How it has moved

Users
unchanged since 31.08
0-3 · 6 readings
  1. 2026-08-313
  2. 2026-09-030
  3. 2026-09-043
  4. 2026-09-073
  5. 2026-09-080
  6. 2026-09-163
Users
unchanged since 31.08
0-3 · 6 readings
  1. 2026-08-313
  2. 2026-09-030
  3. 2026-09-043
  4. 2026-09-073
  5. 2026-09-080
  6. 2026-09-163

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

Specific sites only: 1 match pattern.

  • https://mempool.space/*
  • 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

laboratorio21 publishes 18 listings we track, 1k users between them.

  1. Control Parental de Sitios Web laboratorio21 · Productivity · Tools · published 2025-06-30 532 users (last published figure) ★ 5.0
  2. Reproductor IPTV Personal laboratorio21 · Productivity · Tools · published 2025-06-21 208 users ★ 5.0
  3. Bloqueador JS de Anuncios Selectivo laboratorio21 · Productivity · Developer · published 2025-06-04 139 users
Show 5 more from this publisher
  1. Reproductor de Audio laboratorio21 · Productivity · Tools · published 2025-08-20 105 users
  2. Modo Oscuro Personal laboratorio21 · Productivity · Tools · published 2025-07-28 29 users
  3. Protector de Huella Digital laboratorio21 · Productivity · Developer · published 2025-07-15 11 users ★ 4.0
  4. Mis Notas Rápidas laboratorio21 · Productivity · Tools · published 2025-06-01 10 users
  5. Venezolario laboratorio21 · Lifestyle · Entertainment · published 2025-07-31 10 users

Like this one

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

  1. TideBit Wallet Describes nearly the same job, smaller audience 10 users
  2. Bitwallet Describes nearly the same job, smaller audience 141 users ★ 5.0
  3. Bitcoin Paper Wallet Maker Describes nearly the same job, smaller audience 6 users
  4. ZapArc — Self-Custodial Bitcoin Wallet Describes nearly the same job, smaller audience 146 users ★ 5.0
  5. Octane Wallet Describes nearly the same job, smaller audience 41 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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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.