Every other time I reinstalled it, my bookmarks all came up. This time they didn’t. I am not sure what I have to do to get back all my bookmarks, probably sign in. But sign in with what, do i use my avast log ins or something else. Please help me
Unfortunately I think that you may have lost them.
Whilst I don’t use ASB - it is wise to periodically export your bookmarks/settings/passwords, etc. and make a note of where they were saved. Especially if you are going to do a clean reinstall.
I don’t know if and where they might have been saved/stored previously.
You could try this link and see if there is any relevant information - See Avast Secure Browser FAQ