--- a/browser/base/content/nsContextMenu.js
+++ b/browser/base/content/nsContextMenu.js
@@ -51,16 +51,24 @@ function openContextMenu(aMessage) {
                               selectionInfo: data.selectionInfo,
                               disableSetDesktopBackground: data.disableSetDesktopBg,
                               loginFillInfo: data.loginFillInfo,
                               parentAllowsMixedContent: data.parentAllowsMixedContent,
                               userContextId: data.userContextId,
                             };
   let popup = browser.ownerDocument.getElementById("contentAreaContextMenu");
   let event = gContextMenuContentData.event;
+
+  // Set touch mode to get larger menu items.
+  if (event.mozInputSource == MouseEvent.MOZ_SOURCE_TOUCH) {
+    popup.setAttribute("touchmode", "true");
+  } else {
+    popup.removeAttribute("touchmode");
+  }
+
   popup.openPopupAtScreen(event.screenX, event.screenY, true);
 }
 
 function nsContextMenu(aXulMenu, aIsShift) {
   this.shouldDisplay = true;
   this.initMenu(aXulMenu, aIsShift);
 }
 

--- a/browser/themes/windows/browser.css
+++ b/browser/themes/windows/browser.css
@@ -2009,16 +2009,28 @@ notification.pluginVulnerable > .notific
    */
   margin-left: -10px;
   margin-right: -10px;
   margin-bottom: -10px;
 }
 
 %include ../shared/contextmenu.inc.css
 
+/* Make context menu items larger when opened through touch. */
+#contentAreaContextMenu[touchmode] menu,
+#contentAreaContextMenu[touchmode] menuitem {
+  padding-top: 12px;
+  padding-bottom: 12px;
+}
+
+#contentAreaContextMenu[touchmode] > #context-navigation > menuitem {
+  padding-top: 7px;
+  padding-bottom: 7px;
+}
+
 #context-navigation {
   background-color: menu;
   padding-bottom: 4px;
 }
 
 #context-sep-navigation {
   margin-inline-start: -28px;
   margin-top: -4px;