ニコニコ動画で動画の自動再生が開始された直後に自動的に一時停止します。停止に少しラグがあるため、停止時の再生時間が3秒未満の場合は0秒まで戻します。

Latest Version

Version
2.1
Update
October 22, 2024
Size
10.16KiB
Developer
dnek.net
Category
Users
114
Rating
1 ★
Manifest Version
3
Web Store Status
Languages Support
日本語
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Permissions
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nicovideo-autoplay-canceler Extension

サイバー攻撃から復旧した後のPC版ニコニコ動画は、動画視聴ページを開くと勝手に動画が再生されるようになっています。
この拡張機能は勝手に再生されたことを検知して自動的に一時停止をします。

また、検知から停止までの間にわずかに時間が経過してしまうため、停止後に0秒まで再生時間を戻します。
ただし、レジューム再生機能をオンにしていて最初から3秒以上経っている場合は戻しません。

経緯説明記事
https://blog.dnek.net/entry/2024/08/06/170118

紹介動画シリーズ
https://www.nicovideo.jp/user/134113088/series/487379

ソースコード
https://github.com/dnek/nicovideo-autoplay-canceler

X(Twitter)
https://x.com/dnek_
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "nicovideo-autoplay-canceler", "version": "2.1", "manifest_version": 3, "description": "\u30cb\u30b3\u30cb\u30b3\u52d5\u753b\u3067\u52d5\u753b\u306e\u81ea\u52d5\u518d\u751f\u304c\u958b\u59cb\u3055\u308c\u305f\u76f4\u5f8c\u306b\u81ea\u52d5\u7684\u306b\u4e00\u6642\u505c\u6b62\u3057\u307e\u3059\u3002\u505c\u6b62\u306b\u5c11\u3057\u30e9\u30b0\u304c\u3042\u308b\u305f\u3081\u3001\u505c\u6b62\u6642\u306e\u518d\u751f\u6642\u9593\u304c3\u79d2\u672a\u6e80\u306e\u5834\u5408\u306f0\u79d2\u307e\u3067\u623b\u3057\u307e\u3059\u3002", "content_scripts": [ { "matches": [ "https://www.nicovideo.jp/watch/*" ], "js": [ "content.js" ] } ], "icons": { "128": "icons/icon_128.png" }}
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How to download and manually install nicovideo-autoplay-canceler extension for Chrome

Looking for a way to install nicovideo-autoplay-canceler extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install nicovideo-autoplay-canceler extensions manually, this article outlines two simple methods to effortlessly install nicovideo-autoplay-canceler extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download nicovideo-autoplay-canceler extension and manually install through Drag &Drop

If you ever need to manually install a nicovideo-autoplay-canceler extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the nicovideo-autoplay-canceler Extension by clicking the "Download CRX" button on the website.

Look for the nicovideo-autoplay-canceler extension you wish to install. Go to the website and download the nicovideo-autoplay-canceler extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for nicovideo-autoplay-canceler extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the nicovideo-autoplay-canceler extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download nicovideo-autoplay-canceler extension for Chrome and install in Developer Mode

This is another method to install nicovideo-autoplay-canceler extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the nicovideo-autoplay-canceler extension file

Select and download the nicovideo-autoplay-canceler extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the nicovideo-autoplay-canceler extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your nicovideo-autoplay-canceler extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the nicovideo-autoplay-canceler extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install nicovideo-autoplay-canceler extension in 2 ways. We hope this guide proves helpful.

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