Managed Files icon

Managed Files

by claytonwwinn · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Blocks specified local file types from opening in Chrome (managed by policy).

Users
10K
0 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#10K
#8,699 among extensions
Version
1.3
updated 22 Apr 2026

Users

monthly, 7 months
05,00010KMar 2026Jul 2026Oct 2026
Latest, 15 Oct 2026: 10,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 7 months
001Mar 2026Jul 2026Oct 2026
Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Managed Files

A lightweight, policy-driven Chrome extension to prevent users from opening specific local file types (e.g., .html, .js, .pdf) in the browser.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days0+0.0%00.00
6 months+9,457+1741.6%00.00

Version history

2 versions recorded
1.322 Apr 2026
1.230 Mar 2026

Details

Category
Developer Tools
First seen
30 Mar 2026
Size
47 KB
Languages
en-US
Pricing
Free
Support
github.com
Extension ID
cffcmmamfhgdddagbdgaehfiaoioebdg

Permissions and risk

Low riskimpact 1, likelihood 2
Permissions
webNavigationstorage
Site access
file:///*

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