Pop up notification each time Firefox starts

I have set a primary password on my browser. Due to which, whenever I open my browser, the first thing it does is ask for primary password. I wish this to happen only when I am accessing the passwords or when a site is autofilling it[ thus, necessitating the unlocking of the vault].

Is there a way to disable it at the browser start? I went through an old StackOverflow thread but no solution there. There used to be an extension called MasterPassword that solved this but the link seems to be broken now.