Is PDF Viewer safe?

Clean risk

This extension opens PDF files in Chrome using the PDF.js HTML5 viewer.

It makes PDF.js the default PDF viewer in Chrome for parsing and rendering PDF documents. The store description notes optional access for viewing local files and opt-out telemetry in recent versions.

Rob Wv4.6.129Chrome Web Store
0Risk
Who publishes it

Rob W - 1 other listing from the same operator, none carrying a finding

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

Same store account

1 other listing published from this account, 500k+ users between them, none of them carrying a finding.

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 4.6.129. 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

  • Watch every request your browser makes

    webRequest

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

    tabs

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

    webNavigation

  • Store data in your browser

    storage

declarativeNetRequestWithHostAccess

Where it sends data

Destinations our analysis observed PDF Viewer 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.

  • Mozilla

    PDF Viewer sends data to Mozilla. Named as a recipient by 1 other extensions we have analysed.

Updated 30 September 2026oemmndcbldboiebfnladdacbdfmadadm