User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0
Steps to reproduce:
Bookmark list has grown over the years, many of them are dead or even double. So I took a whole evening to mess up, to get rid of old bookmarks.
Now, a few days later, all old bookmarks have been restored from firefox sync.
Messed up old bookmarks should have been deleted from firefox sync.
I think it happened because my 2nd computer is on the same firefox sync accound so it has the same old bookmarks. My hope was, when messing up on the one computer, they automatically will be messed up on the 2nd computer as well. Instead the 2nd computer was a backup ressource to restore the already messed up bookmarks.
I am quite unhappy about that.