I'm using three Ubuntu systems in an irregular pattern, and since I use Chrome/Chromium anyway and have a Google account, I decided to make my life a bit easier and sync them.

Now I am having a problem: When I want to remove bookmarks from my lists, they not only come back when I switch the machine, they double. By now, I have up to ten identical bookmarks in the list and I spend a lot of time scrolling over them.

Is there any way to remove them permanently?

EDIT: Apps, too.