webextensions-examples/context-menu-demo/README.md

context-menu-demo

A demo of the contextMenus API.

What it does

This add-on adds several items to the browser's context menu:

• one shown when there is a selection in the page, that logs the selected text when clicked.
• one shown in all contexts, that is removed when clicked.
• two "radio" items that are shown in all contexts. These items are grouped using a separator item on each side. One radio item adds a blue border to the page, the other adds a green border.
• one "checkbox" item, shown in all contexts, whose title is updated when the item is clicked.

What it shows

• How to create various types of context menu item:
  • normal
  • radio
  • separator
  • checkbox
• How to use contexts to control when an item appears.
• How to display an item only for certain pages.
• How to update an item's properties.
• How to remove an item.