Reddit (Au) Comment Highlights Firefox

Reddit (Au) Comment Highlights

By: Easy
Highlight unread comments since your last visit to a Reddit comment section.

Features & Capabilities

Reddit (Au) Comment Highlights is a lightweight Chrome extension designed to help Reddit users easily identify unread comments since their last visit to any Reddit comment thread. This feature, typically exclusive to Reddit Gold users, is now accessible without premium subscriptions. The extension requires minimal permissions, ensuring user privacy, and seamlessly syncs across browser sessions for a consistent experience.

Supporting RES (Reddit Enhancement Suite) night mode and allowing custom CSS, the extension integrates smoothly with users' preferred Reddit browsing styles. Please note, comment highlights become visible starting from your second visit to a comment thread after installation. Enhance your Reddit browsing experience by never missing new discussions with this simple tool.

User Growth & Download Statistics

Manifest V3 Add-on Social Media Communication
By:
Easy
Daily users:
479 -2
Rating:
4.76
(17)
Version:
3.0.0 Last updated: 2024-07-01
Version code:
5768303
Creation date:
2017-12-20
Risk:
Moderate risk impact Low risk likelihood
Permissions:
Host permissions:
  • http://*.reddit.com/*
  • https://*.reddit.com/*
Content scripts matches:
  • *.reddit.com
Size:
77.41KB
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-18
Compare stats and ranking:

Other platforms

Chrome
Reddit (Au) Comment Highlights (v3.0.0)
1,000 4.35 (23)

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Easy
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/reddit-comment-highlights/
Website:
https://github.com/aesy/reddit-comment-highlights/issues

Permission Change History

2024-07-01: Version 2.0.1 → 3.0.0
Add Host permissions: http://*.reddit.com/* https://*.reddit.com/*
Remove Permissions: http://*.reddit.com/* https://*.reddit.com/*

User Reviews

Users mostly praise the add-on for reliably highlighting comments and express strong appreciation. However, several reviewers report it stopped working for them or has compatibility issues, and night/dark-mode color detection is inconsistent across setups.
Pros
  • Generally works well and effectively highlights comments — multiple users say it "works great".
  • Widely praised and appreciated — several reviewers give high ratings and thank the developer.
  • Reported to work for users on common Reddit setups and some report success in dark mode/old.reddit.com.
Cons
  • Has stopped working for some users or after recent updates (version/Firefox compatibility problems).
  • Night mode/dark mode color handling is inconsistent — may not detect night mode or apply correct highlight colors.
  • Reliability is mixed across different Reddit layouts/environments (some users report it doesn't work).
Recent reviews
Seems to work well. That this isn't basic ui for reddit is crazy to me.
by av*****, 2025-10-17

by 远离*****, 2025-03-30

by 远离*****, 2025-02-26
View all user reviews ›

Is Reddit (Au) Comment Highlights Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Reddit (Au) Comment Highlights requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: reddit.com
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Reddit (Au) Comment Highlights has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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