Is ExtManager safe?

Clean risk

ExtManager sends your installed-extension inventory to api.extmanager.com.

ExtManager reads the list of other installed Chrome extensions, including each extension's ID, name, version, enabled state, type, install type, description, homepage URL, options URL, and permissions. It stores that inventory locally and posts normal installed-extension records, along with a member identifier and browser language, to api.extmanager.com/config on startup and about once an hour.

extfunv0.3.4Chrome Web Store
1Risk
Who publishes it

extfun - 1 other listing from the same operator, none carrying a finding

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
extfun

Same store account

1 other listing published from this account, 3k+ users between them, none of them carrying a finding.

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 0.3.4. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on extmanager.com

    https://*.extmanager.com/*

  • See, disable and uninstall your other extensions, including your security ones

    management

  • See the address and title of every tab you have open

    tabs

  • Store data in your browser

    storage

Where it sends data

Destinations our analysis observed ExtManager contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • api.extmanager.com

    ExtManager sends data to api.extmanager.com. No other extension we have analysed sends data here.

Updated 30 September 2026bgejgfcdaicmfbfphchgcdgnpnbcondb