TextNotes for Firefox is a straightforward note-taking add-on that will help you keep your notes organized.
The operation of TextNotes is simple, lending itself to effective note-taking no matter if written by you or borrowed from an online source TextNotes will provide you with an organized reference point directly within your Firefox browser. TextNotes stores data on your local machine in permanent storage for WebExtensions.
TextNotes is capable of running in a tab or from a popup window. It can be launched in two ways, as described below.
From a single tab:
Click on TextNotes icon on toolbar.
Click on TextNotes item in context menu if no text selection.
Press Ctrl+Alt+O keys. It is configurable in Manage Extension Shortcuts
Press Ctrl and Click on the TextNotes icon on the toolbar.
Press Ctrl+Alt+P keys. It is configurable in Manage Extension Shortcuts
If you get stuck, which is not likely considering how easy it to use, a help file is located at the author's site.
Storing notes in the permanent storage of a browser
Showing titles of notes from a flat tree control
Maintaining notes: add, delete, drag&drop, context menu
Trashbin for deleted notes
Changing TextArea size
Hyperclick on URLs, supporting foreground and background tabs
Saving and loading data
Adding any selected text on pages to TextNotes via context menu