Bookmark Highlighter is a free Firefox extension designed to improve the visibility of your bookmarks by highlighting them in a distinctive manner. Text links are marked with a blue background, while image links feature a dotted blue outline. This functionality allows users to easily identify their bookmarked content among numerous links, thereby enhancing navigation and accessibility in the browser.

The extension offers several customization options to tailor the highlight styling to user preferences. Users can change the highlight color directly in the Options screen or inject custom CSS for more specific styling. Additionally, it supports integration with other add-ons like Stylish or Stylus, enabling users to override the default CSS classes for even further customization of their bookmarked items.