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Facebook Groups Auto Poster - GroupBlaster

Chrome extension by montecassino.exe · Productivity · Tools

A Chrome extension in Productivity · Tools with 14 users, barely installed.

Specific sites only: 1 match pattern.

What the developer says, and 5 screenshots

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

Users
14
Rating
not rated yet
Users, last 14 days
+14
Version
0.12.7
Updated in the store
2026-10-05
Published
2026-09-25
Manifest
V3
Browser access
7 permissions, 1 site pattern

How it has moved

Users
+14 since 26.09
0-14 · 5 readings
2026-09-26: appeared in the store2026-09-27: released 0.10.12026-09-29: released 0.11.32026-09-30: released 0.11.52026-10-04: released 0.12.62026-10-05: released 0.12.7
  1. 2026-09-260appeared in the store
  2. 2026-09-272released 0.10.1
  3. 2026-10-059released 0.12.7
  4. 2026-10-0813
  5. 2026-10-0914
Users
+14 since 26.09
0-14 · 5 readings
2026-09-26: appeared in the store2026-09-27: released 0.10.12026-09-29: released 0.11.32026-09-30: released 0.11.52026-10-04: released 0.12.62026-10-05: released 0.12.7
  1. 2026-09-260appeared in the store
  2. 2026-09-272released 0.10.1
  3. 2026-10-059released 0.12.7
  4. 2026-10-0813
  5. 2026-10-0914

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://www.facebook.com/*
  • Read what you have copied clipboardRead
  • Sign you in with a Google account identity
  • Schedule work to run later alarms
Show the remaining 4
  • Put data on your clipboard clipboardWrite
  • 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 0.12.7 · Asked for fewer permissions (8, was 10)
  2. Version 0.12.6
  3. Version 0.11.5
Show the remaining 2
  1. Version 0.11.3
  2. Version 0.10.1

What changed recently

  1. Package size changed
  2. Asked for fewer permissions (8, was 10)
  3. Released version 0.12.7 (was 0.12.6)
Show the remaining 9
  1. Package size changed
  2. Released version 0.12.6 (was 0.11.5)
  3. Package size changed
  4. Released version 0.11.5 (was 0.11.3)
  5. Package size changed
  6. Renamed from "GroupBlaster" to "Facebook Groups Auto Poster - GroupBlaster"
  7. Released version 0.11.3 (was 0.10.1)
  8. Package size changed
  9. Store description rewritten

Older entries and the full day by day series are in the app.

The publisher

montecassino.exe publishes 2 listings we track, 42 users between them.

  1. Orbit 8D Audio montecassino.exe · Lifestyle · Entertainment · published 2026-08-12 28 users

Like this one

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

  1. Facebook Groups Auto Poster | Post Scheduler & Automation Assistant Describes nearly the same job, smaller audience 111 users ★ 5.0
  2. Grupy - Facebook Group Auto Poster & Post Scheduler Describes nearly the same job, smaller audience 9 users ★ 5.0
  3. Share Post to Multiple Facebook™ Groups | Multiple Group Share Assistant Describes nearly the same job, smaller audience 1k users ★ 4.4
  4. ReachCraft Multi-Group Publisher Describes nearly the same job audience not published
  5. BulkPost - Facebook Group & Page Auto Poster Describes nearly the same job, smaller audience 12 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?

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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.