Is Awesome NicoNico Downloader safe?

Clean risk

NicoNico Downloader is rated clean - our review surfaced no unexpected behaviour.

https://pbion.comv5.0.1Chrome Web Store
0Risk
Who publishes it

https://pbion.com - 4 other listings 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.

Publisher
https://pbion.com

Same store account

4 other listings published from this account, 132k+ users between them, none of them carrying a finding.

Shared hosts - 3 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.

lohas.nicoseiga.jp
Also called by 2 other listings: nicoExpansion, Seiga Downloader
pbion.com
Also called by 4 other listings, including Download Twitter videos
live2.nicovideo.jp
Also called by 8 other listings, including Minyami, ニコ生コメビュ, Pan for Video

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 5.0.1. 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 suggestqueries.google.com

    https://suggestqueries.google.com/*

  • Read and change your data on pbion.com

    https://*.pbion.com/*

  • Read and change your data on dmc.nico

    https://*.dmc.nico/*

  • Read and change your data on nimg.jp

    https://*.nimg.jp/*

  • Read and change your data on nicoseiga.jp

    https://*.nicoseiga.jp/*

  • Read and change your data on nicovideo.jp

    https://*.nicovideo.jp/*

  • Block and redirect the requests your browser makes

    declarativeNetRequest

  • See which of your requests its blocking rules matched

    declarativeNetRequestFeedback

  • Run its own code inside the pages you visit

    scripting

Updated 30 September 2026jefkdjjbbmlokldmpehimfdefdcklagj