Lost Win10 Library

[ColinB]

My bookmarks in Win10 have disappeared, possibly as a result of most recent Firefox update - which has since been pulled by Mozilla - any help, ideas (anything!), please? Thanks ColinB.

 

[mailpup]

I suggest using Windows System Restore to a point before the update. Do you have restore points available?

 

[MaikuTech]

If you don't have a mozilla account that can synched your pc and devices together.
It is highly unlikely you will get it back if there is no copy of it on your pc.
https://www.thewindowsclub.com/restore-deleted-firefox-bookmarks-favorites