Is Cleanplaats Marktplaats filter safe?

Low risk

Cleanplaats Marktplaats filter stores marketplace listing IDs you view in local extension storage.

When you open a matching Marktplaats or related marketplace listing page, the extension records the listing ID and a timestamp in its local browser storage. The evidence shows this happens even when the viewed-listings indicator setting is disabled, and no outbound data recipient was identified.

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

Cleanplaatsv2.1.5Firefox Add-ons
15Risk

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 2.1.5. 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 marktplaats.nl

    *://*.marktplaats.nl/*

  • Read and change your data on 2dehands.be

    *://*.2dehands.be/*

  • Read and change your data on 2ememain.be

    *://*.2ememain.be/*

  • Store data in your browser

    storage

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

    tabs

  • See every page you navigate to, as you navigate to it

    webNavigation

  • Block and redirect the requests your browser makes

    declarativeNetRequest

  • Schedule its own background tasks

    alarms

Updated 30 September 2026amo-2914080