menus.ACTION_MENU_TOP_LEVEL_LIMIT
The maximum number of top level extension items that can be added to a menu item whose ContextType is "browser_action" or "page_action". Any items beyond this limit will be ignored.
Its value is 6 on Firefox and Chrome.
For compatibility with other browsers, Firefox makes this property available via the contextMenus namespace as well as the menus namespace.
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
ACTION_MENU_TOP_LEVEL_LIMIT |
Yes |
14 |
55
48
|
? |
Yes |
14 |
? |
? |
No |
? |
? |
? |
Note: This API is based on Chromium's chrome.contextMenus API. This documentation is derived from context_menus.json in the Chromium code.
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https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/menus/ACTION_MENU_TOP_LEVEL_LIMIT