Restore bookmarks and bookmark sidebar

Two days ago my Firefox icon in the dock looked very different there was an added something. I have not been able to restore my bookmarks or my sidebar and I'm now wondering if you're update did this. I want my bookmarks back in my bookmark side bar please tell me how to get it. Control B does not do it. I am legally blind and this is especially difficult for me. I don't want to have to sign in with passwords and numbers and letters something you did on your end wreck this website for me Carol Cummins