YouTube Sebasify icon

YouTube Sebasify

by Jeroen45 · Just for Fun
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Modify YouTube thumbnails to include Sebastiaan

Users
6
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#233K
#195K among extensions
Version
1.5.1
updated 5 Jan 2025

Users

monthly, 3 years
036Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 6 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
001Aug 2023Apr 2025Oct 2026
Latest, 15 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 YouTube Sebasify

This extension adds Sebastiaan to all of your Youtube thumbnails for added fun. It is based upon the MrBeastify extension: https://github.com/MagicJinn/MrBeastify-Youtube

Growth

WindowUsersChangeRatingsRating
7 days+2+50.0%00.00
30 days+1+20.0%00.00
6 months+2+50.0%00.00
1 year+2+50.0%00.00

Version history

3 versions recorded
1.5.15 Jan 2025
1.54 Jan 2025
1.410 Aug 2023

Details

Category
Just for Fun
First seen
10 Aug 2023
Size
2.3 MB
Languages
en
Pricing
Free
Extension ID
fmjmpfddjfnpbfofkdplgkbgdlpoikof

Permissions and risk

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

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