diff --git a/.changeset/fifty-peaches-change.md b/.changeset/fifty-peaches-change.md
new file mode 100644
index 00000000..1343db96
--- /dev/null
+++ b/.changeset/fifty-peaches-change.md
@@ -0,0 +1,5 @@
+---
+'@jpmorganchase/mosaic-plugins': patch
+---
+
+Fixed BreadcrumbsPlugin not working on Windows.
diff --git a/.changeset/pretty-socks-judge.md b/.changeset/pretty-socks-judge.md
new file mode 100644
index 00000000..6db54c8c
--- /dev/null
+++ b/.changeset/pretty-socks-judge.md
@@ -0,0 +1,6 @@
+---
+'@jpmorganchase/mosaic-site-components': minor
+---
+
+Refactor Breadcrumbs to remove usage of lab components.
+Fixed non-unique key error in AppHeaderControls.
diff --git a/packages/plugins/src/BreadcrumbsPlugin.ts b/packages/plugins/src/BreadcrumbsPlugin.ts
index fe666b51..29adb0b5 100644
--- a/packages/plugins/src/BreadcrumbsPlugin.ts
+++ b/packages/plugins/src/BreadcrumbsPlugin.ts
@@ -31,7 +31,7 @@ const BreadcrumbsPlugin: PluginType<BreadcrumbsPluginPage, BreadcrumbsPluginOpti
         const breadcrumbs = topAndTailedPath.reduce<Breadcrumb[]>(
           (result, _pathPart, partIndex) => {
             const breadcrumbRoot = `/${pathParts[0]}`;
-            const breadcrumbPath = path.join(
+            const breadcrumbPath = path.posix.join(
               breadcrumbRoot,
               ...topAndTailedPath.slice(0, topAndTailedPath.length - partIndex),
               options.indexPageName
diff --git a/packages/site-components/src/AppHeaderControls/index.tsx b/packages/site-components/src/AppHeaderControls/index.tsx
index fe2f2682..57c8c92c 100644
--- a/packages/site-components/src/AppHeaderControls/index.tsx
+++ b/packages/site-components/src/AppHeaderControls/index.tsx
@@ -88,7 +88,9 @@ export const AppHeaderControls: React.FC = () => {
         </MenuTrigger>
         <MenuPanel>
           {actionMenuOptions.map(option => (
-            <MenuItem onClick={option.onSelect}>{option.title}</MenuItem>
+            <MenuItem key={option.title} onClick={option.onSelect}>
+              {option.title}
+            </MenuItem>
           ))}
         </MenuPanel>
       </Menu>
diff --git a/packages/site-components/src/Breadcrumbs/Breadcrumb.tsx b/packages/site-components/src/Breadcrumbs/Breadcrumb.tsx
index d2b566da..a1aa18a1 100644
--- a/packages/site-components/src/Breadcrumbs/Breadcrumb.tsx
+++ b/packages/site-components/src/Breadcrumbs/Breadcrumb.tsx
@@ -1,5 +1,5 @@
 import React, { forwardRef, ReactNode } from 'react';
-import { Link } from '@jpmorganchase/mosaic-components';
+import { Icon, Link } from '@jpmorganchase/mosaic-components';
 
 import styles from './styles.css';
 
@@ -7,22 +7,27 @@ export interface BreadcrumbProps {
   children?: ReactNode;
   href?: string;
   isCurrentLevel?: boolean;
-  overflowLabel?: string;
+  hideSeparator?: boolean;
 }
 
-// TODO replace with Salt Breadcrumb when it supports an API that can customize Links
 export const Breadcrumb = forwardRef<HTMLAnchorElement, BreadcrumbProps>(function Breadcrumb(
-  { children, isCurrentLevel, ...props },
+  { children, isCurrentLevel, href, hideSeparator },
   ref
 ) {
   return (
-    <li className={styles.wrapper}>
+    <li className={styles.breadcrumb}>
       {isCurrentLevel ? (
-        <span>{children}</span>
+        <>
+          {!hideSeparator && <Icon name="chevronRight" aria-hidden />}
+          <span>{children}</span>
+        </>
       ) : (
-        <Link endIcon="none" ref={ref} variant="regular" {...props}>
-          {children}
-        </Link>
+        <>
+          <Link endIcon="none" ref={ref} variant="regular" href={href}>
+            {children}
+          </Link>
+          {!hideSeparator && <Icon name="chevronRight" aria-hidden />}
+        </>
       )}
     </li>
   );
diff --git a/packages/site-components/src/Breadcrumbs/Breadcrumbs.tsx b/packages/site-components/src/Breadcrumbs/Breadcrumbs.tsx
index 4e7ac312..f3dcfbeb 100644
--- a/packages/site-components/src/Breadcrumbs/Breadcrumbs.tsx
+++ b/packages/site-components/src/Breadcrumbs/Breadcrumbs.tsx
@@ -1,9 +1,10 @@
 import React from 'react';
 import { useRouter } from 'next/router';
-import { Breadcrumbs as SaltBreadcrumbs } from '@salt-ds/lab';
-import { Breadcrumb } from './Breadcrumb';
+import { Menu, MenuItem, MenuPanel, MenuTrigger } from '@salt-ds/core';
+import { Button, Icon } from '@jpmorganchase/mosaic-components';
 
 import styles from './styles.css';
+import { Breadcrumb } from './Breadcrumb';
 
 export type BreadcrumbProps = {
   id: string;
@@ -22,36 +23,61 @@ export const Breadcrumbs: React.FC<BreadcrumbsProps> = ({ breadcrumbs, enabled }
     return null;
   }
 
-  /**
-   * TODO - we need appropriate keyboard nav support as well
-   * The slat cascading menu keyboard nav does not seem to work
-   * so not much point adding support for enter key selection here
-   */
   const handleClick = (event: React.MouseEvent<HTMLDivElement>) => {
-    const target = event.target as HTMLDivElement;
-    if (target.classList.contains('saltMenuItem-menuItemText')) {
-      const breadcrumbIndex = breadcrumbs.findIndex(
-        breadcrumb => breadcrumb.label.toLowerCase() === target.textContent?.toLowerCase()
-      );
-
-      if (breadcrumbIndex > -1) {
-        router.push(breadcrumbs[breadcrumbIndex].path);
-      }
+    const path = event.currentTarget.getAttribute('data-path');
+    if (path) {
+      router.push(path);
     }
   };
 
+  const maxItems = 5;
+  const itemsBeforeCollapse = 1;
+
+  let visibleItemsBefore = breadcrumbs;
+  let hiddenItems: typeof breadcrumbs = [];
+  let visibleItemsAfter: typeof breadcrumbs = [];
+
+  if (breadcrumbs.length > maxItems) {
+    visibleItemsBefore = breadcrumbs.slice(0, itemsBeforeCollapse);
+    hiddenItems = breadcrumbs.slice(itemsBeforeCollapse, -1);
+    visibleItemsAfter = breadcrumbs.slice(visibleItemsBefore.length + hiddenItems.length);
+  }
+
   return (
-    <div onClick={handleClick}>
-      <SaltBreadcrumbs className={styles.root} itemsBeforeCollapse={2} maxItems={5}>
-        {breadcrumbs.map(
-          value =>
-            value && (
-              <Breadcrumb href={value.path} key={`${value.id}`} overflowLabel={value.label}>
-                {value.label}
-              </Breadcrumb>
-            )
+    <nav className={styles.root} aria-label="Breadcrumbs">
+      <ol className={styles.ol}>
+        {visibleItemsBefore.map(({ id, label, path }, index) => (
+          <Breadcrumb
+            key={id}
+            href={path}
+            isCurrentLevel={index === breadcrumbs.length - 1}
+            hideSeparator={index === breadcrumbs.length - 1}
+          >
+            {label}
+          </Breadcrumb>
+        ))}
+        {hiddenItems.length > 0 && (
+          <Menu>
+            <MenuTrigger>
+              <Button variant="secondary" aria-label="Open Menu">
+                <Icon name="overflowMenu" aria-hidden />
+              </Button>
+            </MenuTrigger>
+            <MenuPanel>
+              {hiddenItems.map(({ id, label, path }) => (
+                <MenuItem key={id} data-path={path} onClick={handleClick}>
+                  {label}
+                </MenuItem>
+              ))}
+            </MenuPanel>
+          </Menu>
         )}
-      </SaltBreadcrumbs>
-    </div>
+        {visibleItemsAfter.map(({ id, label, path }) => (
+          <Breadcrumb key={id} href={path} isCurrentLevel>
+            {label}
+          </Breadcrumb>
+        ))}
+      </ol>
+    </nav>
   );
 };
diff --git a/packages/site-components/src/Breadcrumbs/styles.css.ts b/packages/site-components/src/Breadcrumbs/styles.css.ts
index ede30f70..953d11b0 100644
--- a/packages/site-components/src/Breadcrumbs/styles.css.ts
+++ b/packages/site-components/src/Breadcrumbs/styles.css.ts
@@ -8,5 +8,27 @@ export default {
       paddingBottom: ['x4', 'x4', 'x4', 'x4']
     })
   ]),
-  wrapper: unorderedListItem({ variant: 'blank', size: 'small' })
+  ol: style([
+    {
+      display: 'flex',
+      padding: 0,
+      listStyle: 'none',
+      alignItems: 'center',
+      justifyContent: 'flex-start'
+    },
+    responsiveSprinkles({
+      gap: ['x2', 'x2', 'x2', 'x2']
+    })
+  ]),
+  breadcrumb: style([
+    {
+      display: 'flex',
+      alignItems: 'center',
+      justifyContent: 'flex-start'
+    },
+    responsiveSprinkles({
+      gap: ['x2', 'x2', 'x2', 'x2']
+    }),
+    unorderedListItem({ variant: 'blank', size: 'small' })
+  ])
 };