diff --git a/src/modules/filemanager/components/AdminStatusBar/AdminStatusBar.tsx b/src/modules/filemanager/components/AdminStatusBar/AdminStatusBar.tsx
index f5f6367..53f348c 100644
--- a/src/modules/filemanager/components/AdminStatusBar/AdminStatusBar.tsx
+++ b/src/modules/filemanager/components/AdminStatusBar/AdminStatusBar.tsx
@@ -12,6 +12,7 @@ import { UpgradeDriveModal } from '../UpgradeDriveModal/UpgradeDriveModal'
 import { UpgradeTimeoutModal } from '../UpgradeTimeoutModal/UpgradeTimeoutModal'
 import { FILE_MANAGER_EVENTS, POLLING_TIMEOUT_MS } from '../../constants/common'
 import { useStampPolling } from '../../hooks/useStampPolling'
+import { TOOLTIPS } from '../../constants/tooltips'
 
 interface AdminStatusBarProps {
   adminStamp: PostageBatch | null
@@ -226,10 +227,7 @@ export function AdminStatusBar({
 
           <div>File Manager Available: Until: {expiresAt}</div>
 
-          <Tooltip
-            label="The File Manager works only while your storage remains valid. If it expires, all catalogue metadata is
-            permanently lost."
-          />
+          <Tooltip label={TOOLTIPS.ADMIN_STATUS_WARNING} />
         </div>
 
         {renderModalsAndOverlays()}
diff --git a/src/modules/filemanager/components/PrivateKeyModal/PrivateKeyModal.tsx b/src/modules/filemanager/components/PrivateKeyModal/PrivateKeyModal.tsx
index ab9026f..8e00b91 100644
--- a/src/modules/filemanager/components/PrivateKeyModal/PrivateKeyModal.tsx
+++ b/src/modules/filemanager/components/PrivateKeyModal/PrivateKeyModal.tsx
@@ -2,6 +2,7 @@ import { useState, ReactElement, useEffect } from 'react'
 import './PrivateKeyModal.scss'
 import { Button } from '../Button/Button'
 import { setSignerPk, getSigner } from '../../utils/common'
+import { uuidV4 } from '../../../../utils'
 import { PrivateKey } from '@ethersphere/bee-js'
 import ClipboardIcon from 'remixicon-react/FileCopyLineIcon'
 import CheckDoubleLineIcon from 'remixicon-react/CheckDoubleLineIcon'
@@ -31,7 +32,7 @@ export function PrivateKeyModal({ onSaved }: Props): ReactElement {
   }
 
   const handleGenerateNew = () => {
-    const id = crypto.randomUUID()
+    const id = uuidV4()
     const signer = getSigner(id)
     const privKey = signer.toHex()
 
diff --git a/src/modules/filemanager/constants/tooltips.ts b/src/modules/filemanager/constants/tooltips.ts
index 859a897..c663b58 100644
--- a/src/modules/filemanager/constants/tooltips.ts
+++ b/src/modules/filemanager/constants/tooltips.ts
@@ -53,6 +53,8 @@ This action will do two things:
   ADMIN_PURCHASE_BUTTON_ALREADY_EXISTED_ADMIN_DRIVE: `${getTitleWithStyle('Create Admin Drive')}
 
 It will create the Admin Drive.`,
+  ADMIN_STATUS_WARNING:
+    'The File Manager works only while your storage remains valid. If it expires, all catalogue metadata is permanently lost.',
 
   // Drive Creation
   DRIVE_NAME: `${getTitleWithStyle('About Drive Name')}
diff --git a/src/modules/filemanager/utils/bee.ts b/src/modules/filemanager/utils/bee.ts
index fbffd4e..47bb479 100644
--- a/src/modules/filemanager/utils/bee.ts
+++ b/src/modules/filemanager/utils/bee.ts
@@ -172,6 +172,7 @@ export const handleCreateDrive = async (options: CreateDriveOptions): Promise<vo
 
       batchId = await beeApi.buyStorage(size, duration, { label }, undefined, encryption, redundancyLevel)
     } else {
+      // TODO: redundant, fm checks for stamp validtiy
       const isValid = await validateStampStillExists(beeApi, existingBatch.batchID)
 
       if (!isValid) {
diff --git a/src/pages/filemanager/index.tsx b/src/pages/filemanager/index.tsx
index a2c8b19..d1f1b40 100644
--- a/src/pages/filemanager/index.tsx
+++ b/src/pages/filemanager/index.tsx
@@ -8,6 +8,7 @@ import { AdminStatusBar } from '../../modules/filemanager/components/AdminStatus
 import { FileBrowser } from '../../modules/filemanager/components/FileBrowser/FileBrowser'
 import { InitialModal } from '../../modules/filemanager/components/InitialModal/InitialModal'
 import { Context as FMContext } from '../../providers/FileManager'
+import { BrowserPlatform, cacheClearUrls, detectBrowser } from '../../providers/Platform'
 import { Context as SettingsContext } from '../../providers/Settings'
 import { Context as BeeContext, CheckState } from '../../providers/Bee'
 import { PrivateKeyModal } from '../../modules/filemanager/components/PrivateKeyModal/PrivateKeyModal'
@@ -28,6 +29,7 @@ export function FileManagerPage(): ReactElement {
   const [showResetModal, setShowResetModal] = useState<boolean>(false)
   const [isCreationInProgress, setIsCreationInProgress] = useState<boolean>(false)
   const [showConnectionError, setShowConnectionError] = useState<boolean>(false)
+  const [cacheHelpUrl, setCacheHelpUrl] = useState<string>(cacheClearUrls[BrowserPlatform.Chrome])
 
   const { status } = useContext(BeeContext)
   const { beeApi } = useContext(SettingsContext)
@@ -36,6 +38,13 @@ export function FileManagerPage(): ReactElement {
   useEffect(() => {
     isMountedRef.current = true
 
+    const getBrowserPlatform = async () => {
+      const browserPlatform = await detectBrowser()
+      setCacheHelpUrl(cacheClearUrls[browserPlatform])
+    }
+
+    getBrowserPlatform()
+
     return () => {
       isMountedRef.current = false
     }
@@ -162,8 +171,21 @@ export function FileManagerPage(): ReactElement {
       <div className="fm-main">
         <ConfirmModal
           title="Reset File Manager State"
-          message="Your File Manager state appears invalid. Please reset it to continue."
-          confirmLabel="Proceed"
+          message={
+            <span>
+              Your File Manager state appears invalid. Please{' '}
+              <a
+                href={cacheHelpUrl}
+                target="_blank"
+                rel="noopener noreferrer"
+                style={{ display: 'inline', textDecoration: 'underline' }}
+              >
+                clear the browser cache
+              </a>{' '}
+              and reload the page. Then you can reset the File Manager to continue.
+            </span>
+          }
+          confirmLabel="Continue"
           onConfirm={() => {
             setShowResetModal(false)
           }}
diff --git a/src/pages/not-found/PageNotFound.tsx b/src/pages/not-found/PageNotFound.tsx
index 51b9f08..d7f2cca 100644
--- a/src/pages/not-found/PageNotFound.tsx
+++ b/src/pages/not-found/PageNotFound.tsx
@@ -1,13 +1,15 @@
 import { ReactElement } from 'react'
 import { HistoryHeader } from '../../components/HistoryHeader'
 import { Typography } from '@material-ui/core'
+import { Link } from 'react-router-dom'
+import { ROUTES } from '../../routes'
 
 export default function PageNotFound(): ReactElement {
   return (
     <div>
       <HistoryHeader>Page not found</HistoryHeader>
       <Typography>
-        The given url is invalid. Please go back or <a href="/">navigate to Home screen.</a>
+        The given url is invalid. Please go back or <Link to={ROUTES.INFO}>navigate to Home screen.</Link>
       </Typography>
     </div>
   )
diff --git a/src/providers/FileManager.tsx b/src/providers/FileManager.tsx
index f0093c8..0d026e4 100644
--- a/src/providers/FileManager.tsx
+++ b/src/providers/FileManager.tsx
@@ -5,8 +5,8 @@ import { FileManagerBase, FileManagerEvents } from '@solarpunkltd/file-manager-l
 import { Context as SettingsContext } from './Settings'
 import { DriveInfo } from '@solarpunkltd/file-manager-lib'
 import { getSignerPk } from '../modules/filemanager/utils/common'
-import { getUsableStamps } from '../../src/modules/filemanager/utils/bee'
 import { FILE_MANAGER_EVENTS } from '../modules/filemanager/constants/common'
+import { getUsableStamps } from '../modules/filemanager/utils/bee'
 
 interface ContextInterface {
   fm: FileManagerBase | null
@@ -256,6 +256,12 @@ export function Provider({ children }: Props) {
 
     const handleResetState = (isInvalid: boolean) => {
       setShallReset(isInvalid)
+      setFiles([])
+      setDrives([])
+      setExpiredDrives([])
+      setAdminDrive(null)
+      setCurrentDrive(undefined)
+      setCurrentStamp(undefined)
     }
 
     manager.emitter.on(FileManagerEvents.STATE_INVALID, handleResetState)
diff --git a/src/providers/Platform.tsx b/src/providers/Platform.tsx
index d24809a..c4e310d 100644
--- a/src/providers/Platform.tsx
+++ b/src/providers/Platform.tsx
@@ -55,6 +55,42 @@ function getOS(): Platforms | null {
   return null
 }
 
+export enum BrowserPlatform {
+  Chrome = 'chrome',
+  Firefox = 'firefox',
+  Safari = 'safari',
+  Brave = 'brave',
+  Edge = 'edge',
+}
+
+export async function isBraveBrowser(): Promise<boolean> {
+  // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+  // @ts-ignore
+  return (window.navigator.brave && (await window.navigator.brave.isBrave())) === true
+}
+
+export async function detectBrowser(): Promise<BrowserPlatform> {
+  const ua = window.navigator.userAgent.toLowerCase()
+
+  if (ua.includes('edge') || ua.includes('edg/')) return BrowserPlatform.Edge
+
+  if (ua.includes('chrome') && (await isBraveBrowser())) return BrowserPlatform.Brave
+
+  if (ua.includes('firefox')) return BrowserPlatform.Firefox
+
+  if (ua.includes('safari') && !ua.includes('chrome')) return BrowserPlatform.Safari
+
+  return BrowserPlatform.Chrome
+}
+
+export const cacheClearUrls = {
+  chrome: 'https://support.google.com/accounts/answer/32050?hl=en&co=GENIE.Platform%3DDesktop',
+  brave: 'https://support.brave.app/hc/en-us/articles/360048833872-How-Do-I-Clear-Cookies-And-Site-Data-In-Brave',
+  firefox: 'https://support.mozilla.org/en-US/kb/how-clear-firefox-cache',
+  safari: 'https://support.apple.com/en-il/guide/safari/sfri47acf5d6/mac',
+  edge: 'https://support.microsoft.com/en-us/microsoft-edge/view-and-delete-browser-history-in-microsoft-edge-00cf7943-a9e1-975a-a33d-ac10ce454ca4',
+}
+
 export function Provider({ children }: Props): ReactElement {
   const [platform, setPlatform] = useState<SupportedPlatforms>(SupportedPlatforms.Linux)
 
diff --git a/src/utils/index.ts b/src/utils/index.ts
index 17a74bc..bca7e79 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -211,6 +211,7 @@ interface Options {
   timeout?: number
 }
 
+// TODO: merge this with FM component getUsableStamps()
 export function waitUntilStampUsable(batchId: BatchId | string, bee: Bee, options?: Options): Promise<PostageBatch> {
   return waitForStamp(batchId, bee, options)
 }