My desktop computer has the default browser as Firefox which I have used for years and love. Yesterday all was working fine and today when I turned' on my computer all bookmark folders were empty! I tried the manage bookmarks and restore backup but every date listed which I tried, gave me a message that it could not be done. What happened with the last Firefox update that caused this and how can I fix it.

I certainly hope you can help as it would be a mess to recreate these boomark folders which have been built and updated over several years.