Automatically mark videos on Youtube that you have already watched.

Latest Version

Version
4.6.1
Update
February 4, 2024
Size
361KiB
Developer
sniklaus.com
Category
Users
10,000+
Rating
4.34951 ★
Manifest Version
2
Web Store Status
Languages Support
English
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Permissions
Alarms
Downloads
History
Tabs
Cookies
WebRequest
WebRequestBlocking
Https://www.youtube.com/*
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Watchmarker for Youtube Extension

Youtube keeps track of your watch history and automatically marks videos that you have already watched. They however only mark recently seen videos, which is kind of disappointing. This addon fixes this issue and keeps track of your entire watch history, such that not only the recently seen videos are being marked.

***Does this work with the old Youtube theme?*** I am afraid that only the new theme is supported. If you do not know which theme you are currently using then it is very likely the new one.

***How can the persistence of the database be ensured?*** There is an export and import feature, which makes it easy to create a backup of the history. This backup can easily be archived such that you can ensure that you never lose your history.

***How can I make sure that the database is complete?*** The automatic synchronization only considers the recent activity. You are thus encouraged to manually initiate a complete synchronization in the settings, which incorporates as much of your history as possible.

***Something is broken, I demand a fix!*** Please be considerate when leaving a review, this is a free extension that I invest my spare time in. If there is something that does not work then please file an issue on Github where it is easier for me to track.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 2, "name": "Watchmarker for Youtube", "description": "Automatically mark videos on Youtube that you have already watched.", "homepage_url": "https://sniklaus.com/", "version": "4.6.1", "permissions": ["alarms", "downloads", "history", "tabs", "cookies", "webRequest", "webRequestBlocking", "https://www.youtube.com/*"], "options_ui": { "page": "content/index.html", "open_in_tab": true }, "icons": { "72": "content/icon.png" }, "background": { "scripts": ["background.js"] }, "content_scripts": [{ "matches": ["*://www.youtube.com/*"], "css": [], "js": ["youtube.js"] }], "browser_action": { "browser_style": false, "default_title": "Watchmarker for Youtube", "default_icon": { "72" : "content/icon.png" } }}
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How to download and manually install Watchmarker for Youtube extension for Chrome

Looking for a way to install Watchmarker for Youtube 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 Watchmarker for Youtube extensions manually, this article outlines two simple methods to effortlessly install Watchmarker for Youtube extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Watchmarker for Youtube extension and manually install through Drag &Drop

If you ever need to manually install a Watchmarker for Youtube 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 Watchmarker for Youtube Extension by clicking the "Download CRX" button on the website.

Look for the Watchmarker for Youtube extension you wish to install. Go to the website and download the Watchmarker for Youtube extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Watchmarker for Youtube 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 Watchmarker for Youtube 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 Watchmarker for Youtube extension for Chrome and install in Developer Mode

This is another method to install Watchmarker for Youtube 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 Watchmarker for Youtube extension file

Select and download the Watchmarker for Youtube 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 Watchmarker for Youtube 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 Watchmarker for Youtube 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 Watchmarker for Youtube 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 Watchmarker for Youtube extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Martin Wagoner (ID: 000000c053cd9195) Voted 4 ★ - Updated 11/15/2024 I really like this extension, and think everyone should download it. The only problem I've noticed is that sometimes the synchronization doesn't get the watch order correct. For example, one Let's Play that I have is shown as having been watched in the order of episode 60, followed by episodes 59, 63, 62, 61. It's not a big issue, especially considering it's listed correctly on the YouTube history page, but it does make me a little annoyed when stuff is out of order like that. And there is no way to delete multiple entries at once, only individually. Maybe adding the ability to manually move the videos around after they've been logged to fix this. Still download it, and you won't regret it.

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Enas Agnwstos (ID: 000000e1dc528788) Voted 5 ★ - Updated 11/04/2023 This is an extension from OUTER SPACE!! A STUNNING example of human ingenuity!!! So easy to handle , so extremely configurable : HIGHLY recommended!

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김희중 (SCREAM) (ID: 000000b38df43deb) Voted 5 ★ - Updated 10/12/2023 you are the best developer thank you

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Gaurav (ID: 0000003c0036ea0b) Voted 5 ★ - Updated 10/12/2023 I love that the watch-date can be appended on the thumbnail text now. As long as this remains good enough to track 99% of watches across different history sources, I very much appreciate this feature update. One nice to have would probably be able to sort the list column-wise in the extension details, and perhaps filter by month/year etc.

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Andario Andrada (ID: 00000022605068a7) Voted 1 ★ - Updated 10/11/2023 Easily one of my FAVORITE addons, but you totally screwd it with today´s update. As such, my latest database entry says July 2023, even though I´ve watched HUNDREDS of videos ever since, all of them GONE, including the ones I watched yesterday. Please let me know if there´s any way for you to fix this, or I should try to revert to the latest version, because it´s truly a catastrophe, for me. I´ll update the rating as soon as you let us know. Thanks.