Is Manuals Explorer & Custom Web Search safe?

Low risk

Manuals Explorer replaces the browser's default search engine with Yahoo Search via affiliate tracking parameters on install.

On installation, the extension overwrites the browser's default search engine with a Yahoo Search URL that includes hardcoded affiliate identifiers (hspart, hsimp, type, param1, param2). This override is declared in the manifest and takes effect immediately without a separate user consent step beyond the browser's extension install prompt. All subsequent address-bar searches are routed through Yahoo's affiliate tracking endpoint.

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

Manualsexplorer.cov1.0.0.2Firefox 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 1.0.0.2. 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 manualsexplorer.co

    *://manualsexplorer.co/*

  • Store data in your browser

    storage

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

    tabs

Where it sends data

Destinations our analysis observed Manuals Explorer & Custom Web Search contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • search.yahoo.comwidely used

    Manuals Explorer & Custom Web Search sends data to search.yahoo.com. A widely used service: 39 other extensions we have analyzed send data here.

Updated 2 November 2026amo-2871677