webextensions-examples/context-menu-demo

context-menu-demo

A demo of the contextMenus API.

This add-on injects JavaScript into web pages. The addons.mozilla.org domain disallows this operation, so this add-on will not work properly when it's run on pages in the addons.mozilla.org domain.

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 to the browser console 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. Note that these buttons only work on normal web pages, not special pages like about:debugging.
• 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 update an item's properties.
• How to remove an item.