diff --git a/README.md b/README.md
index f22b146..6a66864 100644
--- a/README.md
+++ b/README.md
@@ -82,6 +82,7 @@ I also recommend setting the following prefs in `about:config`. There are two pr
 | browser.display.background_color.dark | String | `#19191b` | Default background color for `color-scheme: dark` pages like about:blank. Great new prefs from [bug 1525107](https://phabricator.services.mozilla.com/D129746)! |
 | browser.display.use_system_colors | Boolean | false | |
 | <i>browser.display.windows.non_native_menus</i> | Number | 1 | |
+| browser.privatebrowsing.enable-new-indicator | Boolean | false | Remove the "Private browsing" window label |
 | <i>browser.startup.blankWindow</i> | Boolean | false | These two settings eliminate the blank white window during startup |
 | <i>browser.startup.preXulSkeletonUI</i> | Boolean | false | |
 | browser.tabs.tabMinWidth | Number | 90 | User preference, but mine is 90 |
diff --git a/prefs/.eslintrc.js b/prefs/.eslintrc.js
new file mode 100644
index 0000000..8260346
--- /dev/null
+++ b/prefs/.eslintrc.js
@@ -0,0 +1,18 @@
+module.exports = {
+  parserOptions: {
+    sourceType: "script",
+    ecmaVersion: "latest",
+  },
+  overrides: [
+    {
+      files: [".eslintrc.js"],
+      env: {
+        node: true,
+        browser: false,
+      },
+    },
+  ],
+  globals: {
+    user_pref: "readonly",
+  },
+};
diff --git a/prefs/recommended.js b/prefs/recommended.js
index 6b9752c..67e9af4 100644
--- a/prefs/recommended.js
+++ b/prefs/recommended.js
@@ -65,6 +65,7 @@ user_pref("extensions.autoDisableScopes", 0);
 user_pref("browser.shell.checkDefaultBrowser", false);
 user_pref("browser.startup.homepage_override.mstone", "ignore");
 user_pref("browser.display.use_system_colors", false);
+user_pref("browser.privatebrowsing.enable-new-indicator", false);
 user_pref("accessibility.mouse_focuses_formcontrol", 0);
 user_pref("browser.tabs.tabMinWidth", 90);
 user_pref("browser.urlbar.accessibility.tabToSearch.announceResults", false);
diff --git a/resources/in-content/system.css b/resources/in-content/system.css
index 7a3e026..fb12eff 100644
--- a/resources/in-content/system.css
+++ b/resources/in-content/system.css
@@ -468,7 +468,7 @@
   }
 
   .onboardingContainer.featureCallout .screen[pos="callout"] .section-main .main-content,
-  .onboardingContainer.featureCallout.arrow-inline-end::before {
+  .onboardingContainer.featureCallout.callout-arrow::before {
     background-color: var(--newtab-background-color-secondary) !important;
     border-color: var(--fxview-contrast-border) !important;
   }
diff --git a/uc-popups.css b/uc-popups.css
index a64d2cf..bf17798 100644
--- a/uc-popups.css
+++ b/uc-popups.css
@@ -1591,7 +1591,8 @@ rtl languages. adjust the border radius accordingly */
 
   @supports -moz-bool-pref("userChrome.css.mac-ui-fonts") {
     :root[dialogroot],
-    :root[dialogroot] dialog {
+    :root[dialogroot] dialog,
+    :root[dialogroot] body {
       font-family: SF Pro Text, SF Arabic, Segoe UI, sans-serif !important;
       font-kerning: normal !important;
     }
@@ -1600,6 +1601,11 @@ rtl languages. adjust the border radius accordingly */
       font-weight: var(--uc-font-weight-semibold, 400) !important;
       font-family: SF Pro Display, SF Arabic, Segoe UI, sans-serif !important;
     }
+
+    :root[dialogroot] .onboardingContainer h1 {
+      font-weight: var(--uc-font-weight-bold, 600) !important;
+      font-family: SF Pro Display, SF Arabic, Segoe UI, sans-serif !important;
+    }
   }
 }
 
diff --git a/uc-tabs-bar.css b/uc-tabs-bar.css
index 69b20be..0c3fbc8 100644
--- a/uc-tabs-bar.css
+++ b/uc-tabs-bar.css
@@ -363,19 +363,11 @@ overflowing tabs don't draw shadows on the special new tab button */
   background: none !important;
 }
 
-:root[privatebrowsingmode="temporary"] .private-browsing-indicator {
-  display: revert !important;
-}
-
 #private-browsing-indicator-with-label {
   -moz-context-properties: fill, fill-opacity !important;
   fill: currentColor !important;
 }
 
-.private-browsing-indicator + #private-browsing-indicator-with-label {
-	display: none !important;
-}
-
 .private-browsing-indicator::before {
   content: "";
   display: -moz-box;
diff --git a/userChrome.ag.css b/userChrome.ag.css
index e12b36e..1ab326b 100644
--- a/userChrome.ag.css
+++ b/userChrome.ag.css
@@ -212,6 +212,23 @@ scrollbar[disabled="true"] {
   margin: 0 !important;
 }
 
+:is(scrollcorner, resizer, scrollbar, scrollbarbutton, slider):where(:-moz-native-anonymous) {
+  /* cribbed from minimal-xul.css to avoid crashes */
+  -moz-box-layout: initial;
+  direction: ltr;
+  font: 16px sans-serif;
+  justify-items: start;
+  vertical-align: initial !important;
+  -moz-user-focus: ignore;
+  user-select: none;
+  display: -moz-box;
+  box-sizing: border-box;
+}
+
+:is(scrollbarbutton, slider, thumb):where(:-moz-native-anonymous) {
+  cursor: inherit;
+}
+
 /* overlay scrollbars in content, if the pref is enabled. I don't recommend
 using this pref because overlay scrollbars can cause problems on certain
 websites where multiple scrollable divs are nested inside each other or