Add a Menu Item to Firefox

We are planning to deprecate the use by Firefox add-ons of the techniques described in this document.

Don't use these techniques to develop new add-ons. Use WebExtensions instead.

If you maintain an add-on which uses the techniques described here, consider migrating it to use WebExtensions instead.

Add-ons developed using these techniques might not work with multiprocess Firefox (e10s), which is already the default in Firefox Nightly and Firefox Developer Edition, and will soon be the default in Beta and Release versions of Firefox. We have documentation on making your add-ons multiprocess-compatible, but it will be more future-proof for you to migrate to WebExtensions.

A wiki page containing resources, migration paths, office hours, and more, is available to help developers transition to the new technologies.

The SDK doesn't provide a built-in API to add new menu items to Firefox. But it's extensible by design, so anyone can build and publish modules for add-on developers to use.

To see how to use third-party modules to add a new menu item, see the tutorial on using third-party modules with jpm.

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 Contributors to this page: wbamberg, Mostafa.S, xfq, maybe, Canuckistani
 Last updated by: wbamberg,