Hide all default Firefox menu items in favor of providing a custom context menu UI.
The overrideContext method will cause the matching menu items from this extension to be shown instead of the default menu. This method should be called from a contextmenu
DOM event handler, and only applies to the menu that opens after this event.
This interface requires the menus.overrideContext
permission.
browser.menus.overrideContext( contextOptions // object )
contextOptions
object
. Options for how the context menus will be overridden.showDefaults
Optional
boolean
. Whether to also include default menu items in the menu.context
Optional
string
. ContextType to override, to allow menu items from other extensions in the menu. Currently only 'bookmark'
and 'tab'
are supported. showDefaults
cannot be used with this option.bookmarkId
Optional
string
. Required when context is 'bookmark'
. Requires 'bookmark' permission.tabId
Optional
integer
. Required when context is 'tab'
. Requires 'tabs' permission.Open the tab context menu on your custom UI, in this case :
document.addEventListener('contextmenu', event => { const foo = event.target.closest('.foo'); if (foo) { // When the context menu is opened on an element with the foo class // set the context to "opening a tab context menu". browser.menus.overrideContext({ context: 'tab', tabId: parseInt(foo.dataset.tabId) }); } }, { capture: true });
See this blog post for more details.
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https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/menus/overrideContext