Can I sync bookmarks and passwords between two desktops yet sync just the bookmarks to an Android phone?

Can I fine-tune sync the way I want? I would love to be able to sync bookmarks and passwords between two desktops yet sync just the bookmarks to a third device: an Android phone. Why? Because while I want my bookmarks available everywhere, I don't want sensitive passwords on a device that leaves home. But I don't see a way to do that. I've tried, and I find the passwords and up being synced no matter how I configure the settings. Nor, apparently, can I export the bookmarks and passwords to a file, strip out the passwords, and import the bookmarks alone to the phone--what I was hoping could be a workaround. I gather one can't import to mobile Firefox. Have to sync. So I'm back where I started: unable to do what I want to do. And I missing something?