diff --git a/packages/proton-browser-transport/src/transport.ts b/packages/proton-browser-transport/src/transport.ts
index bdf11cd..5468bfd 100644
--- a/packages/proton-browser-transport/src/transport.ts
+++ b/packages/proton-browser-transport/src/transport.ts
@@ -8,7 +8,7 @@ import type {
   SigningRequest,
 } from '@proton/link'
 import {Storage} from './storage'
-import {generateReturnUrl, isMobile, parseErrorMessage} from './utils'
+import {closeDuplicateReturnTab, generateReturnUrl, isMobile, parseErrorMessage} from './utils'
 import {type BrowserTransportOptions, SkipToManual} from './types'
 import GenerateQrCode from './qrcode'
 import {WebRenderer} from '@proton/web-renderer'
@@ -22,6 +22,7 @@ export class BrowserTransport implements LinkTransport {
   private requestStatus: boolean
   private requestAccount: string
   private walletType: string
+  private returnUrl?: string | (() => string)
   private activeRequest?: SigningRequest
   // eslint-disable-next-line no-unused-vars
   private activeCancel?: (reason: string | Error) => void
@@ -33,8 +34,11 @@ export class BrowserTransport implements LinkTransport {
     this.requestAccount = options.requestAccount || ''
     this.walletType = options.walletType || 'proton'
     this.storage = new Storage(options.storagePrefix || 'proton-link')
+    this.returnUrl = options.returnUrl
     this.showingManual = false
 
+    closeDuplicateReturnTab()
+
     if (options.ui) {
       this.ui = options.ui
     } else {
@@ -46,13 +50,20 @@ export class BrowserTransport implements LinkTransport {
     this.ui?.showLoading()
   }
 
+  private getReturnUrl(): string {
+    if (typeof this.returnUrl === 'function') {
+      return this.returnUrl()
+    }
+    return this.returnUrl || generateReturnUrl()
+  }
+
   public onSessionRequest(
     session: LinkSession,
     request: SigningRequest,
     cancel: (_reason: string | Error) => void
   ) {
     if (session.metadata.sameDevice) {
-      request.setInfoKey('return_path', generateReturnUrl())
+      request.setInfoKey('return_path', this.getReturnUrl())
     }
 
     if (session.type === 'fallback') {
@@ -232,7 +243,7 @@ export class BrowserTransport implements LinkTransport {
     }
   ) {
     const sameDeviceRequest = request.clone()
-    const returnUrl = generateReturnUrl()
+    const returnUrl = this.getReturnUrl()
     sameDeviceRequest.setInfoKey('same_device', true)
     sameDeviceRequest.setInfoKey('return_path', returnUrl)
 
diff --git a/packages/proton-browser-transport/src/types.ts b/packages/proton-browser-transport/src/types.ts
index caa12d2..6202b64 100644
--- a/packages/proton-browser-transport/src/types.ts
+++ b/packages/proton-browser-transport/src/types.ts
@@ -11,6 +11,11 @@ export interface BrowserTransportOptions {
   walletType?: string
   /** Local storage prefix, defaults to `proton-link`. */
   storagePrefix?: string
+  /**
+   * Return url (or factory) set as `return_path` on same-device requests,
+   * overriding the per-user-agent default from `generateReturnUrl()`.
+   */
+  returnUrl?: string | (() => string)
 
   ui?: UIRenderer
 }
diff --git a/packages/proton-browser-transport/src/utils.ts b/packages/proton-browser-transport/src/utils.ts
index b3bbd81..5ebddd5 100644
--- a/packages/proton-browser-transport/src/utils.ts
+++ b/packages/proton-browser-transport/src/utils.ts
@@ -53,7 +53,8 @@ export function isAndroidWebView() {
 }
 
 export function isMobile() {
-  return typeof window.orientation !== 'undefined' || navigator.userAgent.indexOf('IEMobile') !== -1
+  // window.orientation is removed in modern Chrome for Android, rely on UA-based checks
+  return isAndroid() || isAppleHandheld() || navigator.userAgent.indexOf('IEMobile') !== -1
 }
 
 /** Generate a return url that Proton will redirect back to w/o reload. */
@@ -100,13 +101,32 @@ export function generateReturnUrl() {
     return 'android-app://webview'
   }
 
-  if (isAndroid() && isChromeMobile()) {
-    return 'android-app://com.android.chrome'
+  // stock Chrome on Android: a bare `android-app://com.android.chrome` intent relaunches
+  // Chrome on a new tab instead of returning to the originating one, orphaning the pending
+  // request — fall through to the current URL so the flow completes on the dApp's origin
+  if (isAndroid()) {
+    // the wallet's return navigation always opens a NEW Chrome tab (Android cannot focus
+    // the originating one); tag the URL so the duplicate tab can close itself on load and
+    // drop the user back on the original tab (see closeDuplicateReturnTab)
+    return window.location.href.split('#')[0] + RETURN_TAB_FRAGMENT
   }
 
   return window.location.href
 }
 
+export const RETURN_TAB_FRAGMENT = '#webauth-return'
+
+/**
+ * Close this tab if it was spawned by the wallet's return redirect on Android.
+ * Tabs opened by an external app intent are allowed to close themselves, which
+ * lands the user back on the originating tab where the pending request completes.
+ */
+export function closeDuplicateReturnTab() {
+  if (isAndroid() && window.location.hash.startsWith(RETURN_TAB_FRAGMENT)) {
+    window.close()
+  }
+}
+
 export function parseErrorMessage(error: any) {
   let errorMessage: string