I'm going to share the links about them. The first one is something I've run into which are overreaching security suites. I wish they'd do better but the AV companies are treating users like children at times (You are not my nanny.)
Read these two.
Even though I have no check-mark for "Bookmarks" in View > Sidebar in Firefox, Bookmarks sidebar has recently started appearing when I open Firefox. It is only a minor annoyance to keep crossing it out, yet I don't understand why it appears.
I shall appreciate instruction how not to have the Bookmarks sidebar appear. (Needless to say, I want the Bookmarks toolbar to keep appearing as in the past.)