D3-Annotator
What it does
D3-Annotator allows you to annotate, categorise, and save marked text from a web page both locally and to a synchronisation server (if the server runs D3-Centraliser) in a forensically sound manner.
What it shows
How to create a sidebar for an add-on. How to associate the sidebar with the currently active tab in that sidebar's window. How to store and restore sidebar content.
Licence
GPL-3 Licence. See separate licence file.