Update userChrome.css for firefox v126

Fixing search bar slight movement down on press for Firefox v126.x update.

userChrome.css

@@ -343,6 +343,9 @@ Order of Toolbars
     var(--firefoxcss-top-bar-border-bottom-color) !important;
 }
 
+/* Some random 0.01px(???) line removed (Firefox v126.0)*/
+#nav-bar { border-top: 0px !important; }
+
 /*=====================================================================
 ======================= H E I G H T   F I X E S =======================
 =====================================================================*/
@@ -472,22 +475,26 @@ about:config -> svg.context-properties.content.enabled -> true*/
 ============================ S E A R C H   B A R ======================
 =====================================================================*/
 
+/* Some elements border radius */
 #urlbar-input-container,
 #searchbar,
 #urlbar-container,
 #urlbar {
   border-radius: var(--firefoxcss-border-radius) !important;
 }
 
+/* Remove line in search bar below text separating search results */
 #urlbar .urlbarView-body-inner {
   border-top: 0px !important;
 }
 
+/* Dont remember what this is for */
 #urlbar:not(.megabar):not([focused="true"]),
 #urlbar:not(.megabar):not([focused="true"]):hover {
   border-bottom: transparent;
 }
 
+/* Aligns text in the middle of search bar */
 #urlbar .urlbar-input-box {
   text-align: center;
 }
@@ -503,11 +510,12 @@ about:config -> svg.context-properties.content.enabled -> true*/
   box-shadow: var(--firefoxcss-url-box-shadow-color) !important;
 }
 
+/* Removes separator line at the bottom of search bar separating search buttons and menus */
 .urlbarView:not([noresults]) > .search-one-offs:not([hidden]) {
   border-top: none !important;
 }
 
-/* Megabar */
+/* Megabar - Popout search bar on focus */
 #urlbar[breakout] {
   height: auto !important;
 }
@@ -527,14 +535,18 @@ about:config -> svg.context-properties.content.enabled -> true*/
   transition: none !important;
 }
 
-#urlbar[breakout][breakout-extend] {
+#urlbar[breakout] {
   top: calc(
     (var(--urlbar-toolbar-height) - var(--urlbar-height)) / 2
   ) !important;
   left: 0 !important;
   width: 100% !important;
 }
 
+#urlbar[breakout]:not([open]){
+  bottom: calc((var(--urlbar-container-height) - var(--urlbar-height)) / 2) !important;
+}
+
 /* Styling Extra search bar that you can add to firefox */
 #search-container #searchbar {
   outline: 0 !important;