Ah, think I found the issue. It looks like firefox is using a default-release profile - not sure how that was generated or chosen.
edit - how could I point the workflow to that profile?
edit2 - nevermind I got it Thanks deanishe, this workflow should be more than enough until Firefox makes their bookmarks easier for the team to work with. Especially since you can hotkey it and avoid the need for the ff prefix. Thanks so much!