I had a whole list of saved homepage landing sites that displayed when i open firefox they displayed above the main url/searchbar as shown in screenshot. These have all been deleted and i will need to spend hours to go and look them all up again . are these saved in any config files that i can re-add them ? Why are these being deleted and if this is not going to be saved going forward why do you still make this functionality available ? second, larger screenshot.

Please advise, this is the main reason I use firefox .... all previous updates these URL's remained until now, but if going fwd you dont support , i would suggest you remove the functionality. and I will remove firefox.