Is TrustBuilder Backup safe?

Low risk

TrustBuilder Backup lets any website trigger a one-time reload of the current top-level page.

TrustBuilder Backup injects a script into every frame on all websites and listens for page messages. The listener reloads the current top-level page when a message contains a specific service name and source string, without checking which site sent the message.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

Software factory TrustBuilderv3.2.0Firefox Add-ons
15Risk
Who publishes it

Software factory TrustBuilder - 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.

Publisher
Software factory TrustBuilder

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.

trustbuilder.com
Also called by 2 other listings, including TrustBuilder Backup

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 3.2.0. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Store an unlimited amount of data in your browser

    unlimitedStorage

  • Store data in your browser

    storage

  • Act on the current tab, but only after you click the extension

    activeTab

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

    tabs

Updated 30 September 2026amo-2818133