diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11e2d8b0e..d6cd9d414 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -34,6 +34,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Posts: don't have to click the play button twice for embedded videos.
 - index.html: remove `referrer` meta tag so it doesn't conflict with backend's `Referrer-Policy` header.
 - Modals: fix media modal automatically switching to video.
+- Navigation: profile dropdown erratic behavior.
 
 ### Removed
 - Admin: single user mode. Now the homepage can be redirected to any URL.
diff --git a/app/soapbox/components/account.tsx b/app/soapbox/components/account.tsx
index 2901433ec..069cde252 100644
--- a/app/soapbox/components/account.tsx
+++ b/app/soapbox/components/account.tsx
@@ -1,11 +1,11 @@
-import React from 'react';
+import React, { useRef } from 'react';
 import { defineMessages, useIntl, FormattedMessage } from 'react-intl';
 import { Link, useHistory } from 'react-router-dom';
 
 import HoverRefWrapper from 'soapbox/components/hover-ref-wrapper';
 import VerificationBadge from 'soapbox/components/verification-badge';
 import ActionButton from 'soapbox/features/ui/components/action-button';
-import { useAppSelector, useOnScreen } from 'soapbox/hooks';
+import { useAppSelector } from 'soapbox/hooks';
 import { getAcct } from 'soapbox/utils/accounts';
 import { displayFqn } from 'soapbox/utils/state';
 
@@ -117,19 +117,14 @@ const Account = ({
   emoji,
   note,
 }: IAccount) => {
-  const overflowRef = React.useRef<HTMLDivElement>(null);
-  const actionRef = React.useRef<HTMLDivElement>(null);
-  // @ts-ignore
-  const isOnScreen = useOnScreen(overflowRef);
-
-  const [style, setStyle] = React.useState<React.CSSProperties>({ visibility: 'hidden' });
+  const overflowRef = useRef<HTMLDivElement>(null);
+  const actionRef = useRef<HTMLDivElement>(null);
 
   const me = useAppSelector((state) => state.me);
   const username = useAppSelector((state) => account ? getAcct(account, displayFqn(state)) : null);
 
   const handleAction = () => {
-    // @ts-ignore
-    onActionClick(account);
+    onActionClick!(account);
   };
 
   const renderAction = () => {
@@ -162,19 +157,6 @@ const Account = ({
 
   const intl = useIntl();
 
-  React.useEffect(() => {
-    const style: React.CSSProperties = {};
-    const actionWidth = actionRef.current?.clientWidth || 0;
-
-    if (overflowRef.current) {
-      style.maxWidth = overflowRef.current.clientWidth - 30 - avatarSize - actionWidth;
-    } else {
-      style.visibility = 'hidden';
-    }
-
-    setStyle(style);
-  }, [isOnScreen, overflowRef, actionRef]);
-
   if (!account) {
     return null;
   }
@@ -195,7 +177,7 @@ const Account = ({
   return (
     <div data-testid='account' className='group block w-full shrink-0' ref={overflowRef}>
       <HStack alignItems={actionAlignment} justifyContent='between'>
-        <HStack alignItems={withAccountNote || note ? 'top' : 'center'} space={3}>
+        <HStack alignItems={withAccountNote || note ? 'top' : 'center'} space={3} className='overflow-hidden'>
           <ProfilePopper
             condition={showProfileHoverCard}
             wrapper={(children) => <HoverRefWrapper className='relative' accountId={account.id} inline>{children}</HoverRefWrapper>}
@@ -215,7 +197,7 @@ const Account = ({
             </LinkEl>
           </ProfilePopper>
 
-          <div className='grow'>
+          <div className='grow overflow-hidden'>
             <ProfilePopper
               condition={showProfileHoverCard}
               wrapper={(children) => <HoverRefWrapper accountId={account.id} inline>{children}</HoverRefWrapper>}
@@ -225,7 +207,7 @@ const Account = ({
                 title={account.acct}
                 onClick={(event: React.MouseEvent) => event.stopPropagation()}
               >
-                <HStack space={1} alignItems='center' grow style={style}>
+                <HStack space={1} alignItems='center' grow>
                   <Text
                     size='sm'
                     weight='semibold'
@@ -241,7 +223,7 @@ const Account = ({
             </ProfilePopper>
 
             <Stack space={withAccountNote || note ? 1 : 0}>
-              <HStack alignItems='center' space={1} style={style}>
+              <HStack alignItems='center' space={1}>
                 <Text theme='muted' size='sm' direction='ltr' truncate>@{username}</Text>
 
                 {account.favicon && (
diff --git a/app/soapbox/components/ui/menu/menu.css b/app/soapbox/components/ui/menu/menu.css
index 216ffbd7c..96f510304 100644
--- a/app/soapbox/components/ui/menu/menu.css
+++ b/app/soapbox/components/ui/menu/menu.css
@@ -31,7 +31,3 @@ div:focus[data-reach-menu-list] {
 [data-reach-menu-link][data-disabled] {
   @apply opacity-25 cursor-default;
 }
-
-[data-reach-menu-popover] hr {
-  @apply my-1 mx-2 border-t-2 border-gray-100 dark:border-gray-800;
-}
diff --git a/app/soapbox/components/ui/menu/menu.tsx b/app/soapbox/components/ui/menu/menu.tsx
index 4056674ef..c61cc56d2 100644
--- a/app/soapbox/components/ui/menu/menu.tsx
+++ b/app/soapbox/components/ui/menu/menu.tsx
@@ -37,6 +37,6 @@ const MenuList: React.FC<IMenuList> = (props) => {
 };
 
 /** Divides menu items. */
-const MenuDivider = () => <hr />;
+const MenuDivider = () => <hr className='my-1 mx-2 border-t-2 border-gray-100 dark:border-gray-800' />;
 
 export { Menu, MenuButton, MenuDivider, MenuItems, MenuItem, MenuList, MenuLink };
diff --git a/app/soapbox/features/ui/components/profile-dropdown.tsx b/app/soapbox/features/ui/components/profile-dropdown.tsx
index fa2b5a508..4b91368cf 100644
--- a/app/soapbox/features/ui/components/profile-dropdown.tsx
+++ b/app/soapbox/features/ui/components/profile-dropdown.tsx
@@ -1,12 +1,14 @@
+import { useFloating } from '@floating-ui/react';
+import clsx from 'clsx';
 import throttle from 'lodash/throttle';
-import React from 'react';
+import React, { useEffect, useMemo, useState } from 'react';
 import { defineMessages, useIntl } from 'react-intl';
 import { Link } from 'react-router-dom';
 
 import { fetchOwnAccounts, logOut, switchAccount } from 'soapbox/actions/auth';
 import Account from 'soapbox/components/account';
-import { Menu, MenuButton, MenuDivider, MenuItem, MenuLink, MenuList } from 'soapbox/components/ui';
-import { useAppDispatch, useAppSelector, useFeatures } from 'soapbox/hooks';
+import { MenuDivider } from 'soapbox/components/ui';
+import { useAppDispatch, useAppSelector, useClickOutside, useFeatures } from 'soapbox/hooks';
 import { makeGetAccount } from 'soapbox/selectors';
 
 import ThemeToggle from './theme-toggle';
@@ -39,6 +41,8 @@ const ProfileDropdown: React.FC<IProfileDropdown> = ({ account, children }) => {
   const features = useFeatures();
   const intl = useIntl();
 
+  const [visible, setVisible] = useState(false);
+  const { x, y, strategy, refs } = useFloating<HTMLButtonElement>({ placement: 'bottom-end' });
   const authUsers = useAppSelector((state) => state.auth.users);
   const otherAccounts = useAppSelector((state) => authUsers.map((authUser: any) => getAccount(state, authUser.id)!));
 
@@ -62,7 +66,7 @@ const ProfileDropdown: React.FC<IProfileDropdown> = ({ account, children }) => {
     );
   };
 
-  const menu: IMenuItem[] = React.useMemo(() => {
+  const menu: IMenuItem[] = useMemo(() => {
     const menu: IMenuItem[] = [];
 
     menu.push({ text: renderAccount(account), to: `/@${account.acct}` });
@@ -96,42 +100,82 @@ const ProfileDropdown: React.FC<IProfileDropdown> = ({ account, children }) => {
     return menu;
   }, [account, authUsers, features]);
 
-  React.useEffect(() => {
+  const toggleVisible = () => setVisible(!visible);
+
+  useEffect(() => {
     fetchOwnAccountThrottled();
   }, [account, authUsers]);
 
+  useClickOutside(refs, () => {
+    setVisible(false);
+  });
+
   return (
-    <Menu>
-      <MenuButton>
+    <>
+      <button type='button' ref={refs.setReference} onClick={toggleVisible}>
         {children}
-      </MenuButton>
+      </button>
 
-      <MenuList>
-        {menu.map((menuItem, idx) => {
-          if (menuItem.toggle) {
-            return (
-              <div key={idx} className='flex flex-row items-center justify-between space-x-4 px-4 py-1 text-sm text-gray-700 dark:text-gray-400'>
-                <span>{menuItem.text}</span>
-
-                {menuItem.toggle}
-              </div>
-            );
-          } else if (!menuItem.text) {
-            return <MenuDivider key={idx} />;
-          } else {
-            const Comp: any = menuItem.action ? MenuItem : MenuLink;
-            const itemProps = menuItem.action ? { onSelect: menuItem.action } : { to: menuItem.to, as: Link };
-
-            return (
-              <Comp key={idx} {...itemProps} className='truncate'>
-                {menuItem.text}
-              </Comp>
-            );
-          }
-        })}
-      </MenuList>
-    </Menu>
+      {visible && (
+        <div
+          ref={refs.setFloating}
+          className='z-[1003] mt-2 max-w-xs rounded-md bg-white shadow-lg focus:outline-none dark:bg-gray-900 dark:ring-2 dark:ring-primary-700'
+          style={{
+            position: strategy,
+            top: y ?? 0,
+            left: x ?? 0,
+            width: 'max-content',
+          }}
+        >
+          {menu.map((menuItem, i) => (
+            <MenuItem key={i} menuItem={menuItem} />
+          ))}
+        </div>
+      )}
+    </>
   );
 };
 
+interface MenuItemProps {
+  className?: string
+  menuItem: IMenuItem
+}
+
+const MenuItem: React.FC<MenuItemProps> = ({ className, menuItem }) => {
+  const baseClassName = clsx(className, 'block w-full cursor-pointer truncate px-4 py-2.5 text-left text-sm text-gray-700 hover:bg-gray-100 rtl:text-right dark:text-gray-500 dark:hover:bg-gray-800');
+
+  if (menuItem.toggle) {
+    return (
+      <div className='flex flex-row items-center justify-between space-x-4 px-4 py-1 text-sm text-gray-700 dark:text-gray-400'>
+        <span>{menuItem.text}</span>
+
+        {menuItem.toggle}
+      </div>
+    );
+  } else if (!menuItem.text) {
+    return <MenuDivider />;
+  } else if (menuItem.action) {
+    return (
+      <button
+        type='button'
+        onClick={menuItem.action}
+        className={baseClassName}
+      >
+        {menuItem.text}
+      </button>
+    );
+  } else if (menuItem.to) {
+    return (
+      <Link
+        to={menuItem.to}
+        className={baseClassName}
+      >
+        {menuItem.text}
+      </Link>
+    );
+  } else {
+    throw menuItem;
+  }
+};
+
 export default ProfileDropdown;
diff --git a/app/soapbox/hooks/index.ts b/app/soapbox/hooks/index.ts
index 7c662bca2..6460938b6 100644
--- a/app/soapbox/hooks/index.ts
+++ b/app/soapbox/hooks/index.ts
@@ -2,6 +2,7 @@ export { useAccount } from './useAccount';
 export { useApi } from './useApi';
 export { useAppDispatch } from './useAppDispatch';
 export { useAppSelector } from './useAppSelector';
+export { useClickOutside } from './useClickOutside';
 export { useCompose } from './useCompose';
 export { useDebounce } from './useDebounce';
 export { useDimensions } from './useDimensions';
diff --git a/app/soapbox/hooks/useClickOutside.ts b/app/soapbox/hooks/useClickOutside.ts
new file mode 100644
index 000000000..0bb7f387d
--- /dev/null
+++ b/app/soapbox/hooks/useClickOutside.ts
@@ -0,0 +1,29 @@
+import { ExtendedRefs } from '@floating-ui/react';
+import { useCallback, useEffect } from 'react';
+
+/** Trigger `callback` when a Floating UI element is clicked outside from. */
+export const useClickOutside = <T extends HTMLElement>(
+  refs: ExtendedRefs<T>,
+  callback: (e: MouseEvent) => void,
+) => {
+  const handleWindowClick = useCallback((e: MouseEvent) => {
+    if (e.target) {
+      const target = e.target as Node;
+
+      const floating = refs.floating.current;
+      const reference = refs.reference.current as T | undefined;
+
+      if (!(floating?.contains(target) || reference?.contains(target))) {
+        callback(e);
+      }
+    }
+  }, [refs.floating.current, refs.reference.current]);
+
+  useEffect(() => {
+    window.addEventListener('click', handleWindowClick);
+
+    return () => {
+      window.removeEventListener('click', handleWindowClick);
+    };
+  }, []);
+};
\ No newline at end of file
diff --git a/app/soapbox/hooks/useOnScreen.ts b/app/soapbox/hooks/useOnScreen.ts
index 883fde698..de9aa23b2 100644
--- a/app/soapbox/hooks/useOnScreen.ts
+++ b/app/soapbox/hooks/useOnScreen.ts
@@ -1,13 +1,17 @@
-import React from 'react';
+import React, { useEffect, useMemo, useState } from 'react';
 
-export const useOnScreen = (ref: React.MutableRefObject<HTMLElement>) =>  {
-  const [isIntersecting, setIntersecting] = React.useState(false);
+/** Detect whether a given element is on the screen. */
+// https://stackoverflow.com/a/64892655
+export const useOnScreen = <T>(ref: React.RefObject<T & Element>) =>  {
+  const [isIntersecting, setIntersecting] = useState(false);
 
-  const observer = new IntersectionObserver(
-    ([entry]) => setIntersecting(entry.isIntersecting),
-  );
+  const observer = useMemo(() => {
+    return new IntersectionObserver(
+      ([entry]) => setIntersecting(entry.isIntersecting),
+    );
+  }, []);
 
-  React.useEffect(() => {
+  useEffect(() => {
     if (ref.current) {
       observer.observe(ref.current);
     }