diff --git a/src/tools.ts b/src/tools.ts
index 1e8f431..fc68451 100644
--- a/src/tools.ts
+++ b/src/tools.ts
@@ -31,6 +31,7 @@ import pdf from './tools/pdf.js';
 import sensors from './tools/sensors.js';
 import requests from './tools/requests.js';
 import snapshot from './tools/snapshot.js';
+import storage from './tools/storage.js';
 import tabs from './tools/tabs.js';
 import screenshot from './tools/screenshot.js';
 import themeManagement from './tools/themeManagement.js';
@@ -62,6 +63,7 @@ export const allTools: Tool<any>[] = [
   ...screenshot,
   ...sensors,
   ...snapshot,
+  ...storage,
   ...tabs,
   ...themeManagement,
   ...video,
diff --git a/src/tools/storage.ts b/src/tools/storage.ts
new file mode 100644
index 0000000..5e0b15b
--- /dev/null
+++ b/src/tools/storage.ts
@@ -0,0 +1,348 @@
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { z } from 'zod';
+import { defineTool, defineTabTool } from './tool.js';
+
+/**
+ * Get all cookies for the current browser context.
+ * Uses browserContext.cookies() to retrieve cookie data.
+ */
+const getCookies = defineTool({
+  capability: 'core',
+
+  schema: {
+    name: 'browser_get_cookies',
+    title: 'Get browser cookies',
+    description: 'List all cookies for the current browser context. Optionally filter by domain or URL.',
+    inputSchema: z.object({
+      urls: z.array(z.string()).optional().describe('Filter cookies by specific URLs. If not provided, returns all cookies.'),
+    }),
+    type: 'readOnly',
+  },
+
+  handle: async (context, params, response) => {
+    const browserContext = await context.existingBrowserContext();
+    if (!browserContext)
+      throw new Error('No browser context available. Navigate to a page first.');
+
+    const cookies = params.urls && params.urls.length > 0
+      ? await browserContext.cookies(params.urls)
+      : await browserContext.cookies();
+
+    if (cookies.length === 0) {
+      response.addResult('No cookies found.');
+      return;
+    }
+
+    const result = ['### Browser Cookies', ''];
+    for (const cookie of cookies) {
+      result.push(`- **${cookie.name}**`);
+      result.push(`  - Value: \`${cookie.value.substring(0, 100)}${cookie.value.length > 100 ? '...' : ''}\``);
+      result.push(`  - Domain: ${cookie.domain}`);
+      result.push(`  - Path: ${cookie.path}`);
+      result.push(`  - Expires: ${cookie.expires === -1 ? 'Session' : new Date(cookie.expires * 1000).toISOString()}`);
+      result.push(`  - HttpOnly: ${cookie.httpOnly}`);
+      result.push(`  - Secure: ${cookie.secure}`);
+      result.push(`  - SameSite: ${cookie.sameSite}`);
+      result.push('');
+    }
+
+    result.push(`**Total:** ${cookies.length} cookie(s)`);
+    response.addResult(result.join('\n'));
+  },
+});
+
+/**
+ * Set a cookie in the browser context.
+ * Uses browserContext.addCookies() to add cookie data.
+ */
+const setCookie = defineTool({
+  capability: 'core',
+
+  schema: {
+    name: 'browser_set_cookie',
+    title: 'Set a browser cookie',
+    description: 'Set a cookie with specified name, value, and optional attributes. Requires either url or domain+path.',
+    inputSchema: z.object({
+      name: z.string().describe('Cookie name'),
+      value: z.string().describe('Cookie value'),
+      url: z.string().optional().describe('URL to associate with the cookie. Either url or domain must be specified.'),
+      domain: z.string().optional().describe('Cookie domain. Either url or domain must be specified.'),
+      path: z.string().optional().describe('Cookie path (default: "/")'),
+      expires: z.number().optional().describe('Unix timestamp in seconds for cookie expiration. -1 for session cookie.'),
+      httpOnly: z.boolean().optional().describe('Whether the cookie is HTTP only (default: false)'),
+      secure: z.boolean().optional().describe('Whether the cookie is secure (default: false)'),
+      sameSite: z.enum(['Strict', 'Lax', 'None']).optional().describe('SameSite attribute (default: "Lax")'),
+    }),
+    type: 'destructive',
+  },
+
+  handle: async (context, params, response) => {
+    const browserContext = await context.existingBrowserContext();
+    if (!browserContext)
+      throw new Error('No browser context available. Navigate to a page first.');
+
+    if (!params.url && !params.domain)
+      throw new Error('Either "url" or "domain" must be specified.');
+
+    const cookie: {
+      name: string;
+      value: string;
+      url?: string;
+      domain?: string;
+      path?: string;
+      expires?: number;
+      httpOnly?: boolean;
+      secure?: boolean;
+      sameSite?: 'Strict' | 'Lax' | 'None';
+    } = {
+      name: params.name,
+      value: params.value,
+    };
+
+    if (params.url)
+      cookie.url = params.url;
+    if (params.domain)
+      cookie.domain = params.domain;
+    if (params.path)
+      cookie.path = params.path;
+    if (params.expires !== undefined)
+      cookie.expires = params.expires;
+    if (params.httpOnly !== undefined)
+      cookie.httpOnly = params.httpOnly;
+    if (params.secure !== undefined)
+      cookie.secure = params.secure;
+    if (params.sameSite)
+      cookie.sameSite = params.sameSite;
+
+    await browserContext.addCookies([cookie]);
+
+    const location = params.url || `${params.domain}${params.path || '/'}`;
+    response.addResult(`Cookie "${params.name}" set successfully for ${location}`);
+  },
+});
+
+/**
+ * Delete cookies from the browser context.
+ * Uses browserContext.clearCookies() with optional filters.
+ */
+const deleteCookies = defineTool({
+  capability: 'core',
+
+  schema: {
+    name: 'browser_delete_cookies',
+    title: 'Delete browser cookies',
+    description: 'Delete cookies by name, domain, or path. If no filters provided, clears all cookies.',
+    inputSchema: z.object({
+      name: z.string().optional().describe('Delete cookies with this name'),
+      domain: z.string().optional().describe('Delete cookies for this domain'),
+      path: z.string().optional().describe('Delete cookies with this path'),
+    }),
+    type: 'destructive',
+  },
+
+  handle: async (context, params, response) => {
+    const browserContext = await context.existingBrowserContext();
+    if (!browserContext)
+      throw new Error('No browser context available. Navigate to a page first.');
+
+    const hasFilters = params.name || params.domain || params.path;
+
+    if (hasFilters) {
+      // Build filter object for clearCookies
+      const filter: { name?: string; domain?: string; path?: string } = {};
+      if (params.name)
+        filter.name = params.name;
+      if (params.domain)
+        filter.domain = params.domain;
+      if (params.path)
+        filter.path = params.path;
+
+      await browserContext.clearCookies(filter);
+
+      const filterParts: string[] = [];
+      if (params.name)
+        filterParts.push(`name="${params.name}"`);
+      if (params.domain)
+        filterParts.push(`domain="${params.domain}"`);
+      if (params.path)
+        filterParts.push(`path="${params.path}"`);
+
+      response.addResult(`Cookies deleted matching: ${filterParts.join(', ')}`);
+    } else {
+      await browserContext.clearCookies();
+      response.addResult('All cookies have been cleared.');
+    }
+  },
+});
+
+/**
+ * Get localStorage or sessionStorage contents.
+ * Uses page.evaluate() to access web storage APIs.
+ */
+const getStorage = defineTabTool({
+  capability: 'core',
+
+  schema: {
+    name: 'browser_get_storage',
+    title: 'Get web storage contents',
+    description: 'Get all key-value pairs from localStorage or sessionStorage for the current page.',
+    inputSchema: z.object({
+      type: z.enum(['local', 'session']).describe('Storage type: "local" for localStorage, "session" for sessionStorage'),
+      key: z.string().optional().describe('Get a specific key value instead of all items'),
+    }),
+    type: 'readOnly',
+  },
+
+  handle: async (tab, params, response) => {
+    const storageType = params.type === 'local' ? 'localStorage' : 'sessionStorage';
+
+    if (params.key) {
+      // Get a specific key
+      const value = await tab.page.evaluate(
+        ([type, key]) => {
+          const storage = type === 'local' ? localStorage : sessionStorage;
+          return storage.getItem(key);
+        },
+        [params.type, params.key] as const
+      );
+
+      if (value === null) {
+        response.addResult(`Key "${params.key}" not found in ${storageType}.`);
+      } else {
+        response.addResult(`**${storageType}["${params.key}"]:**\n\`\`\`\n${value}\n\`\`\``);
+      }
+      return;
+    }
+
+    // Get all items
+    const items = await tab.page.evaluate(
+      (type) => {
+        const storage = type === 'local' ? localStorage : sessionStorage;
+        const result: Record<string, string> = {};
+        for (let i = 0; i < storage.length; i++) {
+          const key = storage.key(i);
+          if (key !== null)
+            result[key] = storage.getItem(key) || '';
+        }
+        return result;
+      },
+      params.type
+    );
+
+    const keys = Object.keys(items);
+    if (keys.length === 0) {
+      response.addResult(`${storageType} is empty.`);
+      return;
+    }
+
+    const result = [`### ${storageType} Contents`, ''];
+    for (const key of keys) {
+      const value = items[key];
+      const truncatedValue = value.length > 200 ? value.substring(0, 200) + '...' : value;
+      result.push(`- **${key}:**`);
+      result.push(`  \`\`\`${truncatedValue}\`\`\``);
+      result.push('');
+    }
+
+    result.push(`**Total:** ${keys.length} item(s)`);
+    response.addResult(result.join('\n'));
+  },
+});
+
+/**
+ * Set a key-value pair in localStorage or sessionStorage.
+ * Uses page.evaluate() to access web storage APIs.
+ */
+const setStorage = defineTabTool({
+  capability: 'core',
+
+  schema: {
+    name: 'browser_set_storage',
+    title: 'Set web storage item',
+    description: 'Set a key-value pair in localStorage or sessionStorage for the current page.',
+    inputSchema: z.object({
+      type: z.enum(['local', 'session']).describe('Storage type: "local" for localStorage, "session" for sessionStorage'),
+      key: z.string().describe('Storage key'),
+      value: z.string().describe('Storage value (will be stored as string)'),
+    }),
+    type: 'destructive',
+  },
+
+  handle: async (tab, params, response) => {
+    const storageType = params.type === 'local' ? 'localStorage' : 'sessionStorage';
+
+    await tab.page.evaluate(
+      ([type, key, value]) => {
+        const storage = type === 'local' ? localStorage : sessionStorage;
+        storage.setItem(key, value);
+      },
+      [params.type, params.key, params.value] as const
+    );
+
+    response.addResult(`Set ${storageType}["${params.key}"] successfully.`);
+  },
+});
+
+/**
+ * Clear localStorage, sessionStorage, or both.
+ * Uses page.evaluate() to access web storage APIs.
+ */
+const clearStorage = defineTabTool({
+  capability: 'core',
+
+  schema: {
+    name: 'browser_clear_storage',
+    title: 'Clear web storage',
+    description: 'Clear localStorage, sessionStorage, or both for the current page.',
+    inputSchema: z.object({
+      type: z.enum(['local', 'session', 'both']).describe('Storage type to clear: "local", "session", or "both"'),
+    }),
+    type: 'destructive',
+  },
+
+  handle: async (tab, params, response) => {
+    const clearLocal = params.type === 'local' || params.type === 'both';
+    const clearSession = params.type === 'session' || params.type === 'both';
+
+    await tab.page.evaluate(
+      ([doLocal, doSession]) => {
+        if (doLocal)
+          localStorage.clear();
+        if (doSession)
+          sessionStorage.clear();
+      },
+      [clearLocal, clearSession] as const
+    );
+
+    if (params.type === 'both') {
+      response.addResult('Both localStorage and sessionStorage have been cleared.');
+    } else {
+      const storageType = params.type === 'local' ? 'localStorage' : 'sessionStorage';
+      response.addResult(`${storageType} has been cleared.`);
+    }
+  },
+});
+
+export default [
+  getCookies,
+  setCookie,
+  deleteCookies,
+  getStorage,
+  setStorage,
+  clearStorage,
+];