Firefox userChrome.css for use with treestyletabs

userChrome.css

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

/* to hide the native tabs */
.toolbar-items {
    visibility: collapse;
}

/* to hide the sidebar header */
#sidebar-header {
    visibility: collapse;
}

/* move nav panel in slightly to prevent covering macOS window
controls */
/* #nav-bar-customization-target {
     padding-left: 100px;
} */

/* Hide navigation buttons in context menu. */
#context-back image,
#context-forward image,
#context-reload image,
#context-stop image,
#context-bookmarkpage image,
#context-navigation,
#context-sep-navigation {
    display:none !important;
}