ニコニコ動画 あとで見る 視聴済みチェッカー icon

ニコニコ動画 あとで見る 視聴済みチェッカー

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

ニコニコ動画の【あとで見る】ページで視聴済みの動画をすべて選択する拡張機能です。ページに追加される【視聴済みチェッカーEX】をクリックすると使えます。

Users
25
+4 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#143K
#119K among extensions
Version
1.0.1
updated 21 Aug 2024

Users

monthly, 3 years
01225Dec 2023Jun 2025Oct 2026
Latest, 21 Oct 2026: 25 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
001Dec 2023Jun 2025Oct 2026
Latest, 21 Oct 2026: 0 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 ニコニコ動画 あとで見る 視聴済みチェッカー

質問・不具合・要望などは、このページのサポートからどうぞ。

Growth

WindowUsersChangeRatingsRating
7 days+3+13.6%00.00
30 days+4+19.0%00.00
6 months+6+31.6%00.00
1 year+6+31.6%00.00

Version history

2 versions recorded
1.0.119 Dec 2023
1.018 Dec 2023

Details

Category
Tools
First seen
18 Dec 2023
Size
10 KB
Languages
ja
Pricing
Free
Extension ID
hhjocnekifnnknhajocacdlgbibgfhge

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
webNavigationscripting
Site access
https://www.nicovideo.jp/my/watchlater*

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