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Preview of X Post Marker

X Post Marker by waieight

An extension to mark new posts on X.

Available on Firefox for Android™Available on Firefox for Android™
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Extension Metadata

About this extension
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.
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Permissions and dataLearn more

Required permissions:

  • Read and modify bookmarks
  • Access browsing history
  • Access your data for x.com

Data collection:

  • The developer says this extension doesn't require data collection.
More information
Version
10.0.0.98
Size
44 KB
Last updated
4 days ago (Oct 18, 2025)
Related Categories
  • Social & Communication
License
Mozilla Public License 2.0
Version History
  • See all versions
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