Restoring bookmarks needs to be done from within Firefox. Firefox automatically makes backups of the bookmarks. These are stored in the '''bookmarkbackups''' folder. Open the '''Bookmarks Manager;''' Press the '''Alt''' or '''F10''' key bring up the tool bar, and select '''Bookmarks.''' Hot key is '''<Control>''(Mac=<Command>)'' <Shift> B.''' Once the window is open, at the top of the page, press the button labeled '''Import and Backup.''' Select '''Restore.''' From the list, pick the file you want and click it. The backups are stored in a jsonlz4 file named something like this; bookmarks-2016-06-29_1424_enD1GTHya0JmicnYWg4V4g==.jsonlz4 In this example; 2016-06-29 = date created, 1424 = number of entries.