Is Custom Style Script safe?

Clean risk

Custom Style Script injects user-configured JavaScript or remote script URLs into pages that match saved rules.

The extension stores your rules locally and, when a visited URL matches, executes the configured inline script or loads the configured remote script in the page context. Those scripts run at the start of page loading and can read or change page content and form fields according to what you configured.

Milenv0.1.8Firefox Add-ons
1Risk
Who publishes it

Milen - no other listings under this identity, 1 shared hostname

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

Shared hosts - 1 hostname

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

liveweave.com
Also called by 3 other listings, including Custom Style Script

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 0.1.8. 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 every site you visit

    <all_urls>

  • Store data in your browser

    storage

  • Run its own code inside the pages you visit

    scripting

Updated 30 September 2026amo-630682