Is Smart Image Downloader safe?

Low risk

Smart Image Downloader injects a page script on every site that can decrypt and run code supplied through page meta tags.

The extension registers a content script on all URLs at document start, stores a per-host value in browser storage, then injects its own script into the page. That injected script reads page meta tags, derives a decryption key from the stored value, decrypts the page-provided value, and executes the plaintext when it looks like ASCII code.

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

Coder|Mv1.1Firefox Add-ons
18Risk

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 1.1. 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>

  • Schedule its own background tasks

    alarms

  • Start, monitor and manage your downloads

    downloads

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

    activeTab

  • Store data in your browser

    storage

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

    webNavigation

  • Run its own code inside the pages you visit

    scripting

Updated 30 September 2026amo-2914766