Is Form History Control safe?

Medium risk

Form History Control saves non-password form entries from every site and can reuse single-line entries on other sites.

Form History Control injects scripts on all web and file pages, watches form and editable text changes, and stores non-password values with field and page details in local IndexedDB. Single-line values are stored without the original host and looked up by field name, so autofill and suggestion features can offer a saved value on another site with a matching field name.

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

Stephan Mahieuv2.5.11.0Firefox Add-ons
40Risk
Who publishes it

Stephan Mahieu - no other listings under this identity, 2 shared hostnames

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

Publisher
Stephan Mahieu

Shared hosts - 2 hostnames

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.

local.import
Also called by 1 other listing: FormHistCtrl
stephanmahieu.github.io
Also called by 1 other listing: FormHistCtrl

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

  • 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

  • Store data in your browser

    storage

  • Schedule its own background tasks

    alarms

  • Write to your clipboard

    clipboardWrite

menus
Updated 30 September 2026amo-12021