diff --git a/utils/generate_types/exported.json b/utils/generate_types/exported.json
new file mode 100644
index 0000000000000..20cc2f0f58401
--- /dev/null
+++ b/utils/generate_types/exported.json
@@ -0,0 +1,8 @@
+{
+  "BrowserTypeLaunchOptions": "LaunchOptions",
+  "BrowserContextCookies": "Cookie",
+  "BrowserNewContextOptions": "BrowserContextOptions",
+  "BrowserNewContextOptionsViewport": "ViewportSize",
+  "BrowserNewContextOptionsGeolocation": "Geolocation",
+  "BrowserNewContextOptionsHttpCredentials": "HTTPCredentials"
+}
diff --git a/utils/generate_types/index.js b/utils/generate_types/index.js
index 07e28d98800e2..3327c10adc97a 100644
--- a/utils/generate_types/index.js
+++ b/utils/generate_types/index.js
@@ -22,6 +22,7 @@ const Documentation = require('../doclint/check_public_api/Documentation');
 const PROJECT_DIR = path.join(__dirname, '..', '..');
 const fs = require('fs');
 const {parseOverrides} = require('./parseOverrides');
+const exported = require('./exported.json');
 const objectDefinitions = [];
 const handledMethods = new Set();
 /** @type {Documentation} */
@@ -64,12 +65,14 @@ let documentation;
     return classBody(docClassForName(className));
   });
   const classes = documentation.classesArray.filter(cls => !handledClasses.has(cls.name));
-  const output = `// This file is generated by ${__filename.substring(path.join(__dirname, '..', '..').length)}
+  let output = `// This file is generated by ${__filename.substring(path.join(__dirname, '..', '..').length)}
 ${overrides}
 
 ${classes.map(classDesc => classToString(classDesc)).join('\n')}
 ${objectDefinitionsToString()}
 `;
+  for (const [key, value] of Object.entries(exported))
+    output = output.replace(new RegExp('\\b' + key + '\\b', 'g'), value);
   fs.writeFileSync(path.join(typesDir, 'types.d.ts'), output, 'utf8');
 })().catch(e => {
   console.error(e);
@@ -81,7 +84,7 @@ function objectDefinitionsToString() {
   const parts = [];
   while ((definition = objectDefinitions.pop())) {
     const {name, properties} = definition;
-    parts.push(`interface ${name} {`);
+    parts.push(`${exported[name] ? 'export ' : ''}interface ${name} {`);
     parts.push(properties.map(member => `${memberJSDOC(member, '  ')}${nameForProperty(member)}${argsFromMember(member, name)}: ${typeToString(member.type, name, member.name)};`).join('\n\n'));
     parts.push('}\n');
   }
@@ -109,7 +112,7 @@ function classToString(classDesc) {
 }
 
 /**
- * @param {string} type 
+ * @param {string} type
  */
 function argNameForType(type) {
   if (type === 'void')
@@ -192,8 +195,8 @@ function classBody(classDesc) {
 }
 
 /**
- * @param {Documentation.Class} classDesc 
- * @param {string} methodName 
+ * @param {Documentation.Class} classDesc
+ * @param {string} methodName
  */
 function hasOwnMethod(classDesc, methodName) {
   if (handledMethods.has(`${classDesc.name}.${methodName}`))
@@ -206,7 +209,7 @@ function hasOwnMethod(classDesc, methodName) {
 }
 
 /**
- * @param {Documentation.Class} classDesc 
+ * @param {Documentation.Class} classDesc
  */
 function parentClass(classDesc) {
   if (!classDesc.extends)
@@ -221,13 +224,6 @@ function writeComment(comment, indent = '') {
   parts.push(indent + ' */');
   return parts.join('\n');
 }
-function writeComment2(comment, indent = '') {
-  const parts = [];
-  parts.push('/**');
-  parts.push(...comment.split('\n').map(line => indent + ' * ' + line.replace(/\*\//g, '*\\/')));
-  parts.push(indent + ' */\n' + indent);
-  return parts.join('\n');
-}
 
 /**
  * @param {Documentation.Type} type
@@ -373,9 +369,9 @@ function memberJSDOC(member, indent) {
 }
 
 /**
- * @param {Documentation} mdDoc 
- * @param {Documentation} jsDoc 
- * @return {Documentation} 
+ * @param {Documentation} mdDoc
+ * @param {Documentation} jsDoc
+ * @return {Documentation}
  */
 function mergeDocumentation(mdDoc, jsDoc) {
   const classes = [];
diff --git a/utils/generate_types/test/test.ts b/utils/generate_types/test/test.ts
index 0578035682696..9432b4393cc09 100644
--- a/utils/generate_types/test/test.ts
+++ b/utils/generate_types/test/test.ts
@@ -204,13 +204,32 @@ playwright.chromium.launch().then(async browser => {
 
 // Test v0.12 features
 (async () => {
-  const browser = await playwright.chromium.launch({
+  const launchOptions: playwright.LaunchOptions = {
     devtools: true,
     env: {
       JEST_TEST: true
     }
-  });
-  const page = await browser.newPage();
+  };
+  const browser = await playwright.chromium.launch(launchOptions);
+  const viewport: playwright.ViewportSize = {
+    width: 100,
+    height: 200,
+  };
+  const geolocation: playwright.Geolocation = {
+    latitude: 0,
+    longitude: 0,
+    accuracy: undefined,
+  };
+  const httpCredentials: playwright.HTTPCredentials = {
+    username: 'foo',
+    password: 'bar',
+  };
+  const contextOptions: playwright.BrowserContextOptions = {
+    viewport,
+    geolocation,
+    httpCredentials,
+  };
+  const page = await browser.newPage(contextOptions);
   const button = (await page.$('#myButton'))!;
   const div = (await page.$('#myDiv'))!;
   const input = (await page.$('#myInput'))!;
@@ -246,6 +265,16 @@ playwright.chromium.launch().then(async browser => {
   const buttonText = await (await button.getProperty('textContent')).jsonValue();
   await page.context().clearCookies();
 
+  const cookies: playwright.Cookie[] = await page.context().cookies(['http://example.com']);
+  const cookie = cookies[0];
+  const nameIsString: AssertType<string, typeof cookie.name> = true;
+  const valueIsString: AssertType<string, typeof cookie.value> = true;
+  const pathIsString: AssertType<string, typeof cookie.path> = true;
+  const expiresIsNumber: AssertType<number, typeof cookie.expires> = true;
+  const httpOnlyIsBoolean: AssertType<boolean, typeof cookie.httpOnly> = true;
+  const secureIsBoolean: AssertType<boolean, typeof cookie.secure> = true;
+  const sameSiteIsEnum: AssertType<"Strict"|"Lax"|"None", typeof cookie.sameSite> = true;
+
   const navResponse = await page.waitForNavigation({
     timeout: 1000
   });