[@netweb Keymaster 13 years, 10 months ago]

The default bbPress breadcrumb behaviour is the same behaviour that you are looking for, that’s presuming you are using the default ‘forums’ as the forum prefix in bbPress settings.

I personally haven’t used Yoast breadcrumbs plugin but if you want to continue using it I’d suggest you head over to Yoast’s support for the plugin and ask what options you have.