Mark Seen Youtube icon

Mark Seen Youtube

by Ionut Drutu · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 21 Oct 2026

Easily mark YouTube videos as watched.

Users
20
−3 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#154K
#128K among extensions
Version
1.1.4
updated 26 Oct 2025

Users

monthly, 12 months
01224Oct 2025May 2026Oct 2026
Latest, 21 Oct 2026: 20 usersMove the mouse over the chart for any month

Ratings count

monthly, 12 months
012Oct 2025May 2026Oct 2026
Latest, 21 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Mark Seen Youtube

Mark youtube videos as watched. Never wonder again if you have already seen a video or not. Use ALT + Click to mark any video as watched. Use ALT + W to mark current video as watched.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days−3−13.0%00.00
6 months+9+81.8%+10.00

Version history

3 versions recorded
0.2.2126 Oct 2025
1.1.426 Oct 2025
0.2.1922 Oct 2025

Details

Category
Tools
First seen
22 Oct 2025
Size
38 KB
Languages
en
Pricing
Free
Extension ID
bdabopjbfbdljjmmcckaodpihbmnonpo

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
storage
Site access
*://*.youtube.com/*

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