【更新情報】0.2525.3:全面改装 『ニコニコ動画をChromeCastする拡張 by 3846masa』

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What is nicoCast?

nicoCast is a Chrome extension by This extension has 7,734 weekly active users, an average user rating of 2.91, and was removed from Chrome Web Store 2 months ago. The latest version, 0.2525.3.5, was updated 6 years ago.

This extension was removed from Chrome Web Store on 2022-12-04
Stats date:
Users: 7,734
Rating: 2.91 (33)
Version: 0.2525.3.5 (Last updated: 2016-11-27)
Creation date: 2016-11-27
Manifest version: 2
Featured: No
Size: 56.22K
Risk impact: Moderate risk impact
Risk likelihood: High risk likelihood
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Other platforms

Not available on Firefox
Not available on Edge
2016/11/28 【現状報告】

0.2525.0 : 初版
0.2525.1 : アイコン変更
0.2525.2 : コメント衝突処理改善、一部公式動画再生対応
0.2525.3 : 改装,不具合修正

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Risk impact

nicoCast requires some risky permissions and may not be safe to use. Exercise caution when installing this extension. Review carefully before installing.

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypass your security settings, and access your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Risk likelihood

nicoCast may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension, especially ones with higher risk impact and/or higher risk likelihood.

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User reviews
by しのつぐ しのつぐ, 2019-05-10

・読み込み中のまま動画がスタートしない ・動画途中で止まる ・コメントが流れない時がある 非公式だからこんな感じかって評価

うちの環境ではこの拡張機能をONにするとニコニコ動画の機能が死ぬため、大画面で見たい時以外は拡張機能を切っています。 主なトラブルは以下の通り ・タグをクリックしてのタグ検索に移行しなくなる ・プレイヤー下部の動画をもっと見るを押しても反応しなくなるサムネイルもスクロールなどできなくなり、クリックしても飛べなくなる。 なお、クロームキャストの能力限界だとは思いますがコメントの多い動画を見ているとすぐにとぎれとぎれの再生になります
by Tomo 3 Tomo 3, 2015-10-03
View all user reviews
Promo images
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The manifest file declares the requirements and permissions that a Chrome extension will have access to. By reviewing the manifest, you may be able to determine if a Chrome extension is over-reaching (for example, if an extension is overriding your new tab page, or search provider, or requesting access to your web activities without any good reason).

  "update_url": "",
  "content_scripts": [
      "css": [
      "js": [
      "matches": [
      "run_at": "document_idle"