If you don’t know about smart keywords, basically you can set phrases as shortcuts for specific bookmarks. I want a folder with all of my keywords synced, and that folder only. On each profile or account I have have whatever other folders and the placement of the folder with the keywords doesn’t matter as long as they have the same name.
Idk if 3 posts was necessary
I’m pretty sure you can’t do this. Bookmark sync is all or nothing. However there used to be third-party sync services available that you can consider if it is important to you. IDK if they survived the WebExtension migration though. Also Firefox Sync is really good with End-to-End Encryption and being reliable.
Turn off bookmarks syncing and use Floccus. You can setup 1 folder to sync with it.