YouTube WATCHED. Classic View
Fun
This extension adds a WATCHED mark to the preview of the wholly or partly viewed video, and makes it dimmer. Like in good old days.
Users
8K
Rating
3.7
Reviews
148
7D Growth
0|0%
Stable signalUnknownHigh-risk permissions
Watchmarker for Youtube
Automatically mark videos on Youtube that you have already watched.
Users10KCurrent public install base
Rating4.5Store average score
Reviews154Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
1 assetsWatchmarker for Youtube Media preview
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7-day rating change
Start
4.44
Latest
4.45
7-day rating change
+0.01
2026年7月14日2026年7月20日
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1-day growthFlat
00%7-day growthFlat
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+1K+11.1%Technical snapshot
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Version5.0.4
ManifestV3
Size419KiB
Languages1English
Published
Store updated
Last crawled
English
Overview
Product summary
Review the store description, core capabilities, and common use cases.
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.
***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.
Reviews
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Store average score4.5Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.3Average computed only from synced review bodies below
Reviews with text126Synced review bodies
Total ratings / reviews154Chrome Web Store public rating/review count
Store average score: 4.5. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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Rating
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it used to be great nowadays its just stops working after a day and i have to delete and the download it again in order to make it work everyday
I lvoed this extension but now it says it's "no longer available because it doesn't follow best practices for Chrome extensions."
For the love of god, someone message him on GitHub (i don't have an account)
Awesome extension! Turned off because it's no longer supported. Please, help. :(
This extension was turned off because it is no longer supported, bro help google wants me to delete it !
pure gold
Since the Watchmarker is seemingly no more, how do I extract the information in the .database file, and import it to other "watched" type add-ons? For example, the "YouTube Watched Marker" has an option to import a txt file, but can't import the .database file. This was an indispensable add-on for me. Now looking at other options.
Yet another extension required to fix youtube... Default settings are a bit weird but after some changes its a great extension.
was good , broken now
Edit 10/6/25 IT'S BACK IT'S BACK I'm so happy it's back! Please do what you can to fix this for us. Without it, I feel absolutely lost. This is the most useful extension I have. Without it, I would get so annoyed, trying to remember what I have and haven't watched. I know there are others out there, but this one does exactly what I want it to.