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Denied File Extensions

Chrome extension by AntiPrometheus · Productivity · Education

A Chrome extension in Productivity · Education 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 18 days
+3
Version
0.1
Updated in the store
2026-04-09
Published
2026-04-09
Manifest
V3
Browser access
3 permissions, 1 site pattern

How it has moved

Users
+3 since 01.09
0-3 · 6 readings
  1. 2026-09-010
  2. 2026-09-061
  3. 2026-09-082
  4. 2026-09-100
  5. 2026-09-153
  6. 2026-09-183
Users
+3 since 01.09
0-3 · 6 readings
  1. 2026-09-010
  2. 2026-09-061
  3. 2026-09-082
  4. 2026-09-100
  5. 2026-09-153
  6. 2026-09-183

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.

  • file://*
  • Watch the network requests your browser makes webRequest
  • Block or alter network requests before they are sent webRequestBlocking
  • 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

AntiPrometheus.

Like this one

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

  1. Block File Types Describes nearly the same job, with a large installed audience 700k users ★ 1.1
  2. Managed Files Describes nearly the same job, with an established audience 10k users
  3. Potentially Dangerous File Extension Blocker Describes nearly the same job, smaller audience 1k users ★ 1.0
  4. Corporate Upload Compliance Monitor Describes nearly the same job, smaller audience 3 users (last published figure)
  5. Disable File Upload Describes nearly the same job, smaller audience 154 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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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.