diff --git a/manifest.webapp b/manifest.webapp
index eab9cb1..151d9c0 100644
--- a/manifest.webapp
+++ b/manifest.webapp
@@ -16,6 +16,11 @@
       "folder": "/",
       "index": "index.html",
       "public": false
+    },
+    "/reset": {
+      "folder": "/reset",
+      "index": "index.html",
+      "public": true
     }
   },
   "intents": [
diff --git a/rsbuild.config.ts b/rsbuild.config.ts
index fa6a734..c405920 100644
--- a/rsbuild.config.ts
+++ b/rsbuild.config.ts
@@ -9,8 +9,8 @@ export default defineConfig({
   output: {
     cleanDistPath: true,
     distPath: {
-      root: 'build'
-    }
+      root: 'build',
+    },
   },
   html: {
     template: './src/targets/browser/index.ejs',
@@ -49,7 +49,15 @@ export default defineConfig({
             },
             {
               from: 'icon.svg'
-            }
+            },
+            {
+              from: 'src/targets/public/index.html',
+              to: 'reset/index.html'
+            },
+            {
+              from: 'src/targets/public/reset.js',
+              to: 'reset/reset.js'
+            },
           ],
         })
       ]
diff --git a/src/dataproxy/worker/SharedWorkerProvider.tsx b/src/dataproxy/worker/SharedWorkerProvider.tsx
index f8cdbe0..6b305fe 100644
--- a/src/dataproxy/worker/SharedWorkerProvider.tsx
+++ b/src/dataproxy/worker/SharedWorkerProvider.tsx
@@ -10,6 +10,7 @@ import {
   DataProxyWorkerPartialState
 } from '@/dataproxy/common/DataProxyInterface'
 import { TabCountSync } from '@/dataproxy/common/TabCountSync'
+import { removeStaleLocalData } from '@/dataproxy/worker/utils'
 
 const log = Minilog('👷‍♂️ [SharedWorkerProvider]')
 
@@ -44,7 +45,11 @@ export const SharedWorkerProvider = React.memo(
       if (!client) return
 
       const doAsync = async (): Promise<void> => {
+        // Cleanup any remaining local data
+        await removeStaleLocalData()
+
         log.debug('Init SharedWorker')
+
         const workerInst = new SharedWorker(
           new URL('./shared-worker.ts', import.meta.url),
           {
diff --git a/src/dataproxy/worker/shared-worker.ts b/src/dataproxy/worker/shared-worker.ts
index 0e47b94..0daba01 100644
--- a/src/dataproxy/worker/shared-worker.ts
+++ b/src/dataproxy/worker/shared-worker.ts
@@ -24,7 +24,7 @@ const broadcastChannel = new BroadcastChannel('DATA_PROXY_BROADCAST_CHANANEL')
 
 const dataProxy: DataProxyWorker = {
   setup: async (clientData: ClientData) => {
-    log.debug('Received data for setting client')
+    log.debug('Received data for setting up client')
     if (client) return
     updateState()
 
@@ -62,6 +62,7 @@ const dataProxy: DataProxyWorker = {
 
     searchEngine = new SearchEngine(client)
 
+    log.debug('Setup done')
     updateState()
   },
 
diff --git a/src/dataproxy/worker/utils.ts b/src/dataproxy/worker/utils.ts
new file mode 100644
index 0000000..999dd02
--- /dev/null
+++ b/src/dataproxy/worker/utils.ts
@@ -0,0 +1,26 @@
+import Minilog from 'cozy-minilog'
+
+import { LOCALSTORAGE_KEY_DELETING_DATA } from '@/search/consts'
+const log = Minilog('👷‍♂️ [Worker utils]')
+
+const deleteDatabases = async (): Promise<void> => {
+  const databases = await window.indexedDB.databases()
+  // Remove all indexedDB databases
+  for (const db of databases) {
+    if (db.name) {
+      window.indexedDB.deleteDatabase(db.name)
+      log.info('Deleted indexedDB database : ', db.name)
+    }
+  }
+}
+
+export const removeStaleLocalData = async (): Promise<void> => {
+  // Check flag existence proving the reset process was incomplete
+  const hasStaleData = localStorage.getItem(LOCALSTORAGE_KEY_DELETING_DATA)
+  if (hasStaleData) {
+    log.info('Found stale data: remove it')
+    await deleteDatabases()
+    localStorage.removeItem(LOCALSTORAGE_KEY_DELETING_DATA)
+  }
+  return
+}
diff --git a/src/search/consts.ts b/src/search/consts.ts
index 51ac525..eac32e5 100644
--- a/src/search/consts.ts
+++ b/src/search/consts.ts
@@ -40,3 +40,5 @@ export const DOCTYPE_ORDER = {
   [CONTACTS_DOCTYPE]: 1,
   [FILES_DOCTYPE]: 2
 }
+
+export const LOCALSTORAGE_KEY_DELETING_DATA = 'deletingLocalData'
diff --git a/src/targets/browser/index.ejs b/src/targets/browser/index.ejs
index 4cd1c9e..89c5ed1 100644
--- a/src/targets/browser/index.ejs
+++ b/src/targets/browser/index.ejs
@@ -6,7 +6,6 @@
   <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
   <link rel="icon" type="image/png" href="/favicon-32x32.png" sizes="32x32">
   <link rel="icon" type="image/png" href="/favicon-16x16.png" sizes="16x16">
-  <link rel="manifest" href="/manifest.json" crossOrigin="use-credentials">
   <meta name="color-scheme" content="light dark" />
   <meta name="theme-color" content="#ffffff">
   <meta name="viewport" content="width=device-width, initial-scale=1">
diff --git a/src/targets/public/index.html b/src/targets/public/index.html
new file mode 100644
index 0000000..63ab2d1
--- /dev/null
+++ b/src/targets/public/index.html
@@ -0,0 +1,6 @@
+<html>
+  <head>
+    <script src="reset/reset.js">
+    </script>
+  </head>
+</html>
\ No newline at end of file
diff --git a/src/targets/public/reset.js b/src/targets/public/reset.js
new file mode 100644
index 0000000..87a9753
--- /dev/null
+++ b/src/targets/public/reset.js
@@ -0,0 +1,22 @@
+/* eslint-disable no-console */
+
+function resetData() {
+  // Remove localstorage
+  window.localStorage.clear()
+  console.log('Deleted localStorage')
+
+  // Add this flag for future check
+  window.localStorage.setItem('deletingLocalData', new Date().toISOString())
+
+  // Remove all indexedDB databases
+  window.indexedDB.databases().then(function (databases) {
+    databases.forEach(function (db) {
+      window.indexedDB.deleteDatabase(db.name)
+      console.log('Deleted indexedDB database : ', db.name)
+    })
+    // Everything is done, remove the flag
+    window.localStorage.removeItem('deletingLocalData')
+  })
+}
+
+resetData()