Highbrighter to mark text, add notes and navigate them through context menu. All the changes to a page can be saved and then loaded
The general functionality:
* Mark text with several colours through a context menu on a page
* Save the marked text and load it later when accessing the same page
* Set up your preferences to change a default colour for marking and load a page automatically if it is available in the storage
* Categorise pages when saving or in the preferences
* Use keyboard shortcuts for frequently used commands in the context menu
* Add notes on a page and navigate them by quick scrolling through the context menu
* Import and export stored pages between different PCs and browsers (supporting Mozilla Firefox starting from 60.0) through the preferences page