No Icloud bookmark extension for IE11

I used 1 hour yesterday to clean up in all my bookmarks which showed up after adding the iCloud bookmark sync to all browsers. I did this in Chrome. This morning they are all back to as they were, as much as I can tell in all browsers. I did all the checking and only in IE11 I cannot see any extensions. Do we agree that I should be able to edit my bookmarks in whatever browser on whatever computer and then they all look the same wherever I go? What to do?