>>6822501Just inspect the buttons to determine a valid selector and then hide them by setting "display: none !important".
If you don't know how to inspect browser chrome, enable it in the Firefox web tools options. You need to check boxes 5 and 6 under advanced settings, then Ctrl-Alt-Shift-I to open it.
If you don't know what selector to use, you can right click an element and "copy selector" and Firefox will determine a selector that uniquely picks out the element - these selectors are often overly specific though so it's usually easier to just look for an element ID or class that identifies the button on its own. Pretty easy since it's usually like "scrolldown-button" or whatever.
You can also make the back/forward/refresh buttons movable through the customize menu if you install Classic Theme Restorer and enable it in options.
