I have found that when using the PC with iCloud and syncing bookmarks with chrome to my iphone, I have to enable the extension to do make it work. When I do, for some reason when I alt-left arrow to go back a page, the iCloud extension message popps up on the computer. I can not go back a page. I have to disable the extension for chrome to work correctly on the computer. Anyone found a better solution to sync bookmarks with chrome on the computer with the iPhone?