X Post Marker

An extension to mark new posts on X.

As of June 2026, X Post Marker has 32 users in the Social & Communication category.

Usersup 10.3 percent+10.3%
32
32
Ratingno change0%
— reviews
Reviewsno change0%
Version
0.0.0.155
Manifest V3
90-day change · In the last 90 days this extension 6 version updates, changed permissions.

History

11 snapshots

Tracking since Apr 4, 2026.

35.483228.52Apr 4, 2026Jun 11, 2026
View as table
DateUsersRatingReviewsVersion
Apr 4, 2026290.0.0.106
Apr 17, 2026310.0.0.106
Apr 23, 2026300.0.0.140
Apr 28, 2026290.0.0.147
May 5, 2026320.0.0.151
May 11, 2026290.0.0.153
May 16, 2026300.0.0.154
May 23, 2026350.0.0.154
May 29, 2026330.0.0.155
Jun 5, 2026320.0.0.155
Jun 11, 2026340.0.0.155
Now320.0.0.155

Changelog

  • Apr 17, 2026
    description
    This is an extension that marks new posts with a vertical new line at the left edge of the new post.
    
    The new post will be marked as new at all subsequent post times starting from the last new post time, and the new post will be marked as new at all subsequent post times, even if it is a repost.
    
    The new post time is
    
    Followers tab of the Home page
    Latest tab of Search
    The latest post in the list
    
    The new post time is retrieved from the “Latest tab” of the “Search” tab.
    
    The new post time is updated by long pressing the middle button of the mouse (two point touch) in the post field.
    
    Post time information is stored on the bookmark as a URL parameter, not in storage.
    This extension adds a vertical line “New” badge to the far left of new posts.
    
    It applies the “New” badge to posts made after the time of the previous new post. If a post is made after that time, even if it is a repost, it will receive the “New” badge.
    
    The time of the previous new post is retrieved from:
    
    ・The “Following (Latest)” tab on the Home page
    ・The “Latest” tab in Search
    ・The latest posts in Lists
    ・The latest posts in Communities
  • Apr 17, 2026
    permissions
    bookmarks, history, webNavigation
    storage

Permissions & access

Permissions
storage
Host access
None declared

Screenshots

X Post Marker screenshot 1

About

This extension adds a vertical line “New” badge to the far left of new posts.

It applies the “New” badge to posts made after the time of the previous new post. If a post is made after that time, even if it is a repost, it will receive the “New” badge.

The time of the previous new post is retrieved from:

・The “Following (Latest)” tab on the Home page
・The “Latest” tab in Search
・The latest posts in Lists
・The latest posts in Communities

Technical

Version
0.0.0.155
Manifest
V3
Size
11.06KiB
Min Chrome
88
Languages
2
Featured
No

Metadata

ID
oblplggehnmijgfmjemjgfmlfekdcnbo
Developer ID
uf62dacc3146df03e1829cbe5a24f6ecd
Developer Email
[email protected]
Created
Feb 12, 2020
Last Updated (Store)
May 21, 2026
Last Scraped
Jun 11, 2026
Website
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 11, 2026.