diff --git a/packages/extension-base/src/background/handlers/Extension.ts b/packages/extension-base/src/background/handlers/Extension.ts
index 6a4e6c20..91e1677c 100644
--- a/packages/extension-base/src/background/handlers/Extension.ts
+++ b/packages/extension-base/src/background/handlers/Extension.ts
@@ -5,6 +5,7 @@ import { MetadataDef } from '@polkadot/extension-inject/types';
 import { SubjectInfo } from '@polkadot/ui-keyring/observable/types';
 import { AccountJson, AuthorizeRequest, MessageTypes, MetadataRequest, RequestAccountCreateExternal, RequestAccountCreateSuri, RequestAccountEdit, RequestAccountExport, RequestAccountShow, RequestAccountTie, RequestAccountValidate, RequestAuthorizeApprove, RequestAuthorizeReject, RequestDeriveCreate, ResponseDeriveValidate, RequestMetadataApprove, RequestMetadataReject, RequestSigningApprovePassword, RequestSigningApproveSignature, RequestSigningCancel, RequestSigningIsLocked, RequestSeedCreate, RequestTypes, ResponseAccountExport, RequestAccountForget, ResponseSeedCreate, RequestSeedValidate, RequestDeriveValidate, ResponseSeedValidate, ResponseType, SigningRequest, RequestJsonRestore, ResponseJsonRestore, RequestAccountChangePassword } from '../types';
 
+import { PASSWORD_EXPIRY_MS } from '@polkadot/extension-base/defaults';
 import chrome from '@polkadot/extension-inject/chrome';
 import keyring from '@polkadot/ui-keyring';
 import accountsObservable from '@polkadot/ui-keyring/observable/accounts';
@@ -20,7 +21,6 @@ type CachedUnlocks = Record<string, number>;
 
 const SEED_DEFAULT_LENGTH = 12;
 const SEED_LENGTHS = [12, 15, 18, 21, 24];
-const PASSWORD_EXPIRY = 15 * 60 * 1000;
 
 // a global registry to use internally
 const registry = new TypeRegistry();
@@ -311,7 +311,7 @@ export default class Extension {
     const savedExpiry = this.#cachedUnlocks[request.payload.address] || 0;
 
     if (isSavedPass) {
-      this.#cachedUnlocks[request.payload.address] = now + PASSWORD_EXPIRY;
+      this.#cachedUnlocks[request.payload.address] = now + PASSWORD_EXPIRY_MS;
     } else if (savedExpiry < now) {
       this.#cachedUnlocks[request.payload.address] = 0;
       pair.lock();
diff --git a/packages/extension-base/src/defaults.ts b/packages/extension-base/src/defaults.ts
index 01ed7f00..dc05de6c 100644
--- a/packages/extension-base/src/defaults.ts
+++ b/packages/extension-base/src/defaults.ts
@@ -3,8 +3,12 @@
 
 const PORT_CONTENT = 'content';
 const PORT_EXTENSION = 'extension';
+const PASSWORD_EXPIRY_MIN = 15;
+const PASSWORD_EXPIRY_MS = PASSWORD_EXPIRY_MIN * 60 * 1000;
 
 export {
+  PASSWORD_EXPIRY_MIN,
+  PASSWORD_EXPIRY_MS,
   PORT_CONTENT,
   PORT_EXTENSION
 };
diff --git a/packages/extension-ui/src/Popup/Signing/Request.tsx b/packages/extension-ui/src/Popup/Signing/Request.tsx
index 569935f5..f43b7e6f 100644
--- a/packages/extension-ui/src/Popup/Signing/Request.tsx
+++ b/packages/extension-ui/src/Popup/Signing/Request.tsx
@@ -6,6 +6,7 @@ import { AccountJson, RequestSign } from '@polkadot/extension-base/background/ty
 import { SignerPayloadJSON, SignerPayloadRaw } from '@polkadot/types/types';
 
 import React, { useCallback, useContext, useState, useEffect } from 'react';
+import { PASSWORD_EXPIRY_MIN } from '@polkadot/extension-base/defaults';
 import { TypeRegistry } from '@polkadot/types';
 
 import { ActionBar, ActionContext, Address, Button, ButtonArea, Checkbox, Link, VerticalSpace } from '../../components';
@@ -114,7 +115,7 @@ export default function Request ({ account: { isExternal }, buttonText, isFirst,
     [onAction, signId]
   );
 
-  const signButton = isLocked
+  const SignButton = () => isLocked
     ? (
       <Unlock
         buttonText={buttonText}
@@ -124,7 +125,10 @@ export default function Request ({ account: { isExternal }, buttonText, isFirst,
       >
         <Checkbox
           checked={!!isSavedPass}
-          label={t<string>("Don't ask me again for the next 15 minutes")}
+          label={t<string>(
+            "Don't ask me again for the next {{expiration}} minutes",
+            { replace: { expiration: PASSWORD_EXPIRY_MIN } }
+          )}
           onChange={setIsSavedPass}
         />
       </Unlock>
@@ -167,7 +171,7 @@ export default function Request ({ account: { isExternal }, buttonText, isFirst,
           )
         }
         <SignArea>
-          {isFirst && !isExternal && signButton}
+          {isFirst && !isExternal && <SignButton/>}
           <CancelButton>
             <Link
               isDanger
@@ -193,7 +197,7 @@ export default function Request ({ account: { isExternal }, buttonText, isFirst,
         />
         <VerticalSpace />
         <SignArea>
-          {!isExternal && signButton}
+          {!isExternal && <SignButton/>}
           <CancelButton>
             <Link
               isDanger
diff --git a/packages/extension/public/locales/en/translation.json b/packages/extension/public/locales/en/translation.json
index 786963a9..646ceb12 100644
--- a/packages/extension/public/locales/en/translation.json
+++ b/packages/extension/public/locales/en/translation.json
@@ -86,7 +86,7 @@
   "Sign the transaction": "",
   "Sign the message": "",
   "Scan signature via camera": "",
-  "Don't ask me again for the next 15 minutes": "",
+  "Don't ask me again for the next {{expiration}} minutes": "",
   "Password for this account": "",
   "Welcome": "",
   "Before we start, just a couple of notes regarding use:": "",
diff --git a/packages/extension/public/locales/zh/translation.json b/packages/extension/public/locales/zh/translation.json
index 09669d4e..7d188d57 100644
--- a/packages/extension/public/locales/zh/translation.json
+++ b/packages/extension/public/locales/zh/translation.json
@@ -86,7 +86,7 @@
   "Sign the transaction": "签名此交易",
   "Sign the message": "签名此消息",
   "Scan signature via camera": "通过摄像头扫描签名",
-  "Don't ask me again for the next 15 minutes": "在接下来的15分钟内别再问我了",
+  "Don't ask me again for the next {{expiration}} minutes": "在接下来的{{expiration}}分钟内别再问我了",
   "Password for this account": "此帐户密码",
   "Welcome": "欢迎",
   "Before we start, just a couple of notes regarding use:": "在我们开始之前，只是一些关于使用的注意事项:",