The browser was not updated but rolled back to an older version ESR 78.15 To restore bookmarks, enter in the address bar about:profiles. Select a wire that is not active Default Profile no. Root Directory - Click on Open Directory. Open Folder bookmarkbackups. This folder stores the backed up bookmarks. Copy the required backup to the desktop. Open the browser Menu - Library - Bookmarks - Show All Bookmarks - import and backup - Restory - Choose File - We select our backup and all bookmarks are restored. As for passwords and extensions, there may be problems with recovery, since the browser version is older. I do not store passwords in the browser, I use KeePass. I apologize for my English, I am writing through a translator.