Reddit New Comments Highlighter Chrome Extension

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So, this is a reddit gold feature which enables a user to highlight all the new comments on a link since he last visited the page. I have also added keyboard shortcuts Shift+UpArrow & Shift+DownArrow to goto the nearest new comment.

The extension has 2 configurations:

  1. Maximum History: The total number of records to keep in the local storage.
  2. Pixels: The number of pixels to keep above the new comment when the extension scrolls using Shift + Up/Down arrow key.

The Options can of coarse be accessed via Extensions page. The code is available at: & can be installed via Webstore at

TODO: Trigger highlighting when user presses "load more comments" on threads with hundreds of comments.