Been using Firefox for many years. Configured the Firefox Browser to automatically open the Sidebar Bookmarks every time I open Firefox browser. About a week ago that configuration stopped working and I can not re-set it to automatically open the Sidebar Bookmarks when I open the Mozilla browser. When I search online I see I am not the only user of Firefox who has developed this same problem. I suspect it occurred when Firefox updated their browser. Would appreciate getting that feature restored as it is annoying to have to open the Sidebar Bookmarks every time I open and use Firefox browser. No, I am not going to leave it open when I stop using my computer to solve the problem. I close all my apps and shut my computer down after using it. If this cannot be fixed my only alternative is to stop using Firefox and find a new browser. If I am doing something wrong please advise! Larrey