diff --git a/desktop/flipper-ui-core/src/chrome/PlatformSelectWizard.tsx b/desktop/flipper-ui-core/src/chrome/PlatformSelectWizard.tsx
index 828eee8a2..5831a2682 100644
--- a/desktop/flipper-ui-core/src/chrome/PlatformSelectWizard.tsx
+++ b/desktop/flipper-ui-core/src/chrome/PlatformSelectWizard.tsx
@@ -123,6 +123,7 @@ class PlatformSelectWizard extends Component<Props, State> {
     return (
       <Modal
         visible
+        centered
         onCancel={() => {
           this.props.onHide();
           markWizardAsCompleted();
diff --git a/desktop/flipper-ui-core/src/chrome/SettingsSheet.tsx b/desktop/flipper-ui-core/src/chrome/SettingsSheet.tsx
index e42de8536..f824ad148 100644
--- a/desktop/flipper-ui-core/src/chrome/SettingsSheet.tsx
+++ b/desktop/flipper-ui-core/src/chrome/SettingsSheet.tsx
@@ -93,6 +93,7 @@ class SettingsSheet extends Component<Props, State> {
     return (
       <Modal
         visible
+        centered
         onCancel={this.props.onHide}
         width={570}
         title="Settings"
diff --git a/desktop/flipper-ui-core/src/chrome/plugin-manager/PluginManager.tsx b/desktop/flipper-ui-core/src/chrome/plugin-manager/PluginManager.tsx
index 7d8b54e58..e63b000e5 100644
--- a/desktop/flipper-ui-core/src/chrome/plugin-manager/PluginManager.tsx
+++ b/desktop/flipper-ui-core/src/chrome/plugin-manager/PluginManager.tsx
@@ -15,7 +15,7 @@ import {Modal} from 'antd';
 
 export default function (props: {onHide: () => any}) {
   return (
-    <Modal width={800} visible onCancel={props.onHide} footer={null}>
+    <Modal visible centered width={800} onCancel={props.onHide} footer={null}>
       <Tabs>
         <Tab tab="Plugin Status">
           <PluginDebugger />
diff --git a/desktop/flipper-ui-core/src/sandy-chrome/SetupDoctorScreen.tsx b/desktop/flipper-ui-core/src/sandy-chrome/SetupDoctorScreen.tsx
index 99194c3bf..687b0861e 100644
--- a/desktop/flipper-ui-core/src/sandy-chrome/SetupDoctorScreen.tsx
+++ b/desktop/flipper-ui-core/src/sandy-chrome/SetupDoctorScreen.tsx
@@ -257,6 +257,7 @@ export default function SetupDoctorScreen(props: {
 
   return (
     <Modal
+      centered
       width={570}
       title="Setup Doctor"
       visible={props.visible}
diff --git a/desktop/flipper-ui-core/src/sandy-chrome/WelcomeScreen.tsx b/desktop/flipper-ui-core/src/sandy-chrome/WelcomeScreen.tsx
index 29d839751..647624641 100644
--- a/desktop/flipper-ui-core/src/sandy-chrome/WelcomeScreen.tsx
+++ b/desktop/flipper-ui-core/src/sandy-chrome/WelcomeScreen.tsx
@@ -108,6 +108,7 @@ export default function WelcomeScreen({
 }) {
   return (
     <Modal
+      centered
       closable={false}
       visible={visible}
       footer={
diff --git a/desktop/flipper-ui-core/src/sandy-chrome/appinspect/LaunchEmulator.tsx b/desktop/flipper-ui-core/src/sandy-chrome/appinspect/LaunchEmulator.tsx
index 3873c9816..75994fdb9 100644
--- a/desktop/flipper-ui-core/src/sandy-chrome/appinspect/LaunchEmulator.tsx
+++ b/desktop/flipper-ui-core/src/sandy-chrome/appinspect/LaunchEmulator.tsx
@@ -139,6 +139,7 @@ export const LaunchEmulatorDialog = withTrackingScope(
     return (
       <Modal
         visible
+        centered
         onCancel={onClose}
         title="Launch Emulator"
         footer={null}