Can't Add or Remove Safari Bookmarks
Has anyone received the following error message: You have been using Safari with bookmarks, history, and passwords imported from Firefox. To edit your bookmarks, you must first keep or remove the Firefox data. Safari imported these when you started using it on December 31, 4000, so you could try out Safari with your data.
I am receiving this error message (the screenshot below) whenever I try to add or remove bookmarks in Safari. I've already tried all three options: "Don't Keep," "Cancel," and "Keep Data from Firefox" but none help resolve the problem. The error message started after I updated to Yosemite. Please chime in with steps on how to fix this issue.
Thanks.
iMac, OS X Yosemite (10.10), Safari 8