IF I try to just move the whole lot leftward, that cuts out the "bookmarks" with the black star as well as search bookmarks entry bar.  A long time ago, I thought it had a left right scroll tab at the very bottom.  All support entries talk about moving the whole column to the right side of the screen-what I need is 1) an ability to move all bookmarks titles to the left edge as much as possible while keeping orientation with the top "star/bookmarks".
   I do use a zoom button for browsing the web, but reducing screen size has nothing to do with the overly fat/wide bookmarks area-there has got to be a way to put it on a diet!!!

For some reason, my long column (about 1,000 bookmarks) have an intolerable indent space/empty area to the left of each entry...about 2-3 in long and for all bookmarks, so that I have to stretch out the names and reduce my main viewer window as a result. IF I try to just move the whole lot leftward, that cuts out the "bookmarks" with the black star as well as search bookmarks entry bar. A long time ago, I thought it had a left right scroll tab at the very bottom. All support entries talk about moving the whole column to the right side of the screen-what I need is 1) an ability to move all bookmarks titles to the left edge as much as possible while keeping orientation with the top "star/bookmarks". I do use a zoom button for browsing the web, but reducing screen size has nothing to do with the overly fat/wide bookmarks area-there has got to be a way to put it on a diet!!! BONUS: if anyone knows on a Mac running High Sierra or any other os, how the heck do you increase size of other menus that don't respond to zoom (command + or _)..even ones not on Firefox? Any recommended zoom apps for menus intrinsic to macs in general?