Marks: Text Highlighter Firefox

Marks: Text Highlighter

Extension to select text on web pages and mark with colors

Features & Capabilities

Marks: Text Highlighter helps readers, researchers, and students capture key ideas on any web page. Select text, apply a color with a single click, and keep highlights tied to each URL so they reappear on revisit.

Key features

  • On-page control UI to apply color in one click
  • Multi-color system with default colors and custom palettes
  • Right-click and keyboard shortcuts for fast actions
  • Page-based organization: highlights stay with the URL
  • Minimap navigation for quick scanning

Privacy and storage

  • Local-first storage using storage.local
  • Optional cross-device sync via storage.sync when available
  • No backend, no analytics, no account required

User Growth & Download Statistics

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:
Myoungdo Park
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/marks-text-highlighter/
Email:
cu*****@gmail.com
Website:
https://github.com/cuspymd/text-highlighter

User Reviews

Simple Highlighter with all the ability to remove, change color etc from the mouse cursor itself.
by Fi*****, 2026-05-18

by At*****, 2026-03-18

i installed it tried it, and loved it but whenever i refresh page the words get de-highlighted but they are still stored in the extension, it'd be so good, yet mainly power and awesome with addition of something like no matter how many time i refresh, the words should stay highlighted until i'm login and on my id, and should sync across my devices
by Fi*****, 2026-02-26
View all user reviews ›

Is Marks: Text Highlighter 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.

Marks: Text Highlighter requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • 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.

Marks: Text Highlighter is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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