diff --git a/lib/browser.ts b/lib/browser.ts
index ce25aefd0..ba7a78ed5 100644
--- a/lib/browser.ts
+++ b/lib/browser.ts
@@ -34,16 +34,18 @@ for (let foo in webdriver) {
 export class Webdriver {
   actions: () => webdriver.ActionSequence = webdriver.WebDriver.actions;
   wait:
-      (condition: webdriver.promise.Promise|webdriver.util.Condition|Function,
+      (condition: webdriver.promise.Promise<any> | webdriver.util.Condition |
+          Function,
        opt_timeout?: number,
        opt_message?:
-           string) => webdriver.promise.Promise = webdriver.WebDriver.wait;
-  sleep: (ms: number) => webdriver.promise.Promise = webdriver.WebDriver.sleep;
+           string) => webdriver.promise.Promise<any> = webdriver.WebDriver.wait;
+  sleep: (ms: number) => webdriver.promise.Promise<any> =
+      webdriver.WebDriver.sleep;
   getCurrentUrl:
-      () => webdriver.promise.Promise = webdriver.WebDriver.getCurrentUrl;
-  getTitle: () => webdriver.promise.Promise = webdriver.WebDriver.getTitle;
+      () => webdriver.promise.Promise<any> = webdriver.WebDriver.getCurrentUrl;
+  getTitle: () => webdriver.promise.Promise<any> = webdriver.WebDriver.getTitle;
   takeScreenshot:
-      () => webdriver.promise.Promise = webdriver.WebDriver.takeScreenshot;
+      () => webdriver.promise.Promise<any> = webdriver.WebDriver.takeScreenshot;
 }
 
 /**
@@ -188,7 +190,7 @@ export class Browser extends Webdriver {
    *
    * @type {q.Promise} Done when the new browser is ready for use
    */
-  ready: webdriver.promise.Promise;
+  ready: webdriver.promise.Promise<any>;
 
   /*
    * Set by the runner.
@@ -247,6 +249,7 @@ export class Browser extends Webdriver {
     // include functions which are overridden by protractor below.
     let methodsToSync = ['getCurrentUrl', 'getPageSource', 'getTitle'];
 
+
     // Mix all other driver functionality into Protractor.
     Object.getOwnPropertyNames(webdriver.WebDriver.prototype)
         .forEach((method: string) => {
@@ -300,7 +303,7 @@ export class Browser extends Webdriver {
    *
    * @returns {webdriver.promise.Promise} A promise which resolves to the capabilities object.
    */
-  getProcessedConfig: () => webdriver.promise.Promise;
+  getProcessedConfig: () => webdriver.promise.Promise<any>;
 
   /**
    * Fork another instance of protractor for use in interactive tests.
@@ -346,7 +349,7 @@ export class Browser extends Webdriver {
    */
   private executeScript_(
       script: string|Function, description: string,
-      ...scriptArgs: any[]): webdriver.promise.Promise {
+      ...scriptArgs: any[]): webdriver.promise.Promise<any> {
     if (typeof script === 'function') {
       script = 'return (' + script + ').apply(null, arguments);';
     }
@@ -372,7 +375,7 @@ export class Browser extends Webdriver {
    */
   private executeAsyncScript_(
       script: string|Function, description: string,
-      ...scriptArgs: any[]): webdriver.promise.Promise {
+      ...scriptArgs: any[]): webdriver.promise.Promise<any> {
     if (typeof script === 'function') {
       script = 'return (' + script + ').apply(null, arguments);';
     }
@@ -394,7 +397,7 @@ export class Browser extends Webdriver {
    * @returns {!webdriver.promise.Promise} A promise that will resolve to the
    *    scripts return value.
    */
-  waitForAngular(opt_description?: string): webdriver.promise.Promise {
+  waitForAngular(opt_description?: string): webdriver.promise.Promise<any> {
     let description = opt_description ? ' - ' + opt_description : '';
     if (this.ignoreSynchronization) {
       return this.driver.controlFlow().execute(() => {
@@ -402,7 +405,7 @@ export class Browser extends Webdriver {
       }, 'Ignore Synchronization Protractor.waitForAngular()');
     }
 
-    let runWaitForAngularScript: () => webdriver.promise.Promise = () => {
+    let runWaitForAngularScript: () => webdriver.promise.Promise<any> = () => {
       if (this.plugins_.skipAngularStability()) {
         return webdriver.promise.fulfilled();
       } else if (this.rootEl) {
@@ -462,7 +465,7 @@ export class Browser extends Webdriver {
                   errMsg +=
                       '\nWhile waiting for element with locator' + description;
                 }
-                let pendingTimeoutsPromise: webdriver.promise.Promise;
+                let pendingTimeoutsPromise: webdriver.promise.Promise<any>;
                 if (this.trackOutstandingTimeouts_) {
                   pendingTimeoutsPromise = this.executeScript_(
                       'return window.NG_PENDING_TIMEOUTS',
@@ -528,7 +531,7 @@ export class Browser extends Webdriver {
    * @returns {!webdriver.promise.Promise} A promise that will be resolved to an
    *     array of the located {@link webdriver.WebElement}s.
    */
-  findElements(locator: Locator): webdriver.promise.Promise {
+  findElements(locator: Locator): webdriver.promise.Promise<any> {
     return this.element.all(locator).getWebElements();
   }
 
@@ -539,7 +542,7 @@ export class Browser extends Webdriver {
    *     the element is present on the page.
    */
   isElementPresent(locatorOrElement: webdriver.Locator|
-                   webdriver.WebElement): webdriver.promise.Promise {
+                   webdriver.WebElement): webdriver.promise.Promise<any> {
     let element = (locatorOrElement.isPresent) ? locatorOrElement :
                                                  this.element(locatorOrElement);
     return element.isPresent();
@@ -857,7 +860,7 @@ export class Browser extends Webdriver {
    * @returns {!webdriver.promise.Promise} A promise that will resolve once
    *    page has been changed.
    */
-  setLocation(url: string): webdriver.promise.Promise {
+  setLocation(url: string): webdriver.promise.Promise<any> {
     this.waitForAngular();
     return this
         .executeScript_(
@@ -880,7 +883,7 @@ export class Browser extends Webdriver {
    *     .toBe('http://angular.github.io/protractor/#/api');
    * @returns {string} The current absolute url from AngularJS.
    */
-  getLocationAbsUrl(): webdriver.promise.Promise {
+  getLocationAbsUrl(): webdriver.promise.Promise<any> {
     this.waitForAngular();
     return this.executeScript_(
         clientSideScripts.getLocationAbsUrl, 'Protractor.getLocationAbsUrl()',
@@ -924,7 +927,8 @@ export class Browser extends Webdriver {
    *     is done. The promise will resolve to a boolean which represents whether
    *     this is the first time that the debugger is called.
    */
-  private validatePortAvailability_(port: number): webdriver.promise.Promise {
+  private validatePortAvailability_(port: number):
+      webdriver.promise.Promise<any> {
     if (this.debuggerValidated_) {
       return webdriver.promise.fulfilled(false);
     }
diff --git a/lib/element.ts b/lib/element.ts
index 896be987c..cc9c4d63f 100644
--- a/lib/element.ts
+++ b/lib/element.ts
@@ -17,27 +17,27 @@ let WEB_ELEMENT_FUNCTIONS = [
 // Explicitly define webdriver.WebElement.
 export class WebdriverWebElement {
   getDriver: () => webdriver.WebDriver;
-  getId: () => webdriver.promise.Promise;
-  getRawId: () => webdriver.promise.Promise;
-  serialize: () => webdriver.promise.Promise;
-  findElement: (subLocator: Locator) => webdriver.promise.Promise;
-  click: () => webdriver.promise.Promise;
-  sendKeys: (...args: (string|webdriver.promise.Promise)[]) =>
-      webdriver.promise.Promise;
-  getTagName: () => webdriver.promise.Promise;
-  getCssValue: (cssStyleProperty: string) => webdriver.promise.Promise;
-  getAttribute: (attributeName: string) => webdriver.promise.Promise;
-  getText: () => webdriver.promise.Promise;
-  getSize: () => webdriver.promise.Promise;
-  getLocation: () => webdriver.promise.Promise;
-  isEnabled: () => webdriver.promise.Promise;
-  isSelected: () => webdriver.promise.Promise;
-  submit: () => webdriver.promise.Promise;
-  clear: () => webdriver.promise.Promise;
-  isDisplayed: () => webdriver.promise.Promise;
-  takeScreenshot: (opt_scroll?: boolean) => webdriver.promise.Promise;
-  getOuterHtml: () => webdriver.promise.Promise;
-  getInnerHtml: () => webdriver.promise.Promise;
+  getId: () => webdriver.promise.Promise<any>;
+  getRawId: () => webdriver.promise.Promise<string>;
+  serialize: () => webdriver.promise.Promise<any>;
+  findElement: (subLocator: Locator) => webdriver.promise.Promise<any>;
+  click: () => webdriver.promise.Promise<void>;
+  sendKeys: (...args: (string|webdriver.promise.Promise<string>)[]) =>
+      webdriver.promise.Promise<void>;
+  getTagName: () => webdriver.promise.Promise<string>;
+  getCssValue: (cssStyleProperty: string) => webdriver.promise.Promise<string>;
+  getAttribute: (attributeName: string) => webdriver.promise.Promise<string>;
+  getText: () => webdriver.promise.Promise<string>;
+  getSize: () => webdriver.promise.Promise<{width: number, height: number}>;
+  getLocation: () => webdriver.promise.Promise<{x: number, y: number}>;
+  isEnabled: () => webdriver.promise.Promise<boolean>;
+  isSelected: () => webdriver.promise.Promise<boolean>;
+  submit: () => webdriver.promise.Promise<void>;
+  clear: () => webdriver.promise.Promise<void>;
+  isDisplayed: () => webdriver.promise.Promise<boolean>;
+  takeScreenshot: (opt_scroll?: boolean) => webdriver.promise.Promise<string>;
+  getOuterHtml: () => webdriver.promise.Promise<string>;
+  getInnerHtml: () => webdriver.promise.Promise<string>;
 }
 
 /**
@@ -99,7 +99,7 @@ export class ElementArrayFinder extends WebdriverWebElement {
   constructor(
       private browser_: Browser, getWebElements?: Function,
       private locator_?: any,
-      public actionResults_: webdriver.promise.Promise = null) {
+      public actionResults_: webdriver.promise.Promise<any> = null) {
     super();
     this.getWebElements = getWebElements || null;
 
@@ -379,7 +379,7 @@ export class ElementArrayFinder extends WebdriverWebElement {
    * @returns {!webdriver.promise.Promise} A promise which resolves to the
    *     number of elements matching the locator.
    */
-  count(): webdriver.promise.Promise {
+  count(): webdriver.promise.Promise<any> {
     return this.getWebElements().then(
         (arr: any) => { return arr.length; },
         (err: any) => {
@@ -439,7 +439,7 @@ export class ElementArrayFinder extends WebdriverWebElement {
    * @returns {Array.<ElementFinder>} Return a promise, which resolves to a list
    *     of ElementFinders specified by the locator.
    */
-  asElementFinders_(): webdriver.promise.Promise {
+  asElementFinders_(): webdriver.promise.Promise<any> {
     return this.getWebElements().then((arr: webdriver.WebElement[]) => {
       return arr.map((webElem: webdriver.WebElement) => {
         return ElementFinder.fromWebElement_(
@@ -472,7 +472,7 @@ export class ElementArrayFinder extends WebdriverWebElement {
    * @returns {!webdriver.promise.Promise} A promise which will resolve to
    *     an array of ElementFinders represented by the ElementArrayFinder.
    */
-  then(fn: Function, errorFn: Function): webdriver.promise.Promise {
+  then(fn: Function, errorFn: Function): webdriver.promise.Promise<any> {
     if (this.actionResults_) {
       return this.actionResults_.then(fn, errorFn);
     } else {
@@ -506,7 +506,7 @@ export class ElementArrayFinder extends WebdriverWebElement {
    *     function has been called on all the ElementFinders. The promise will
    *     resolve to null.
    */
-  each(fn: Function): webdriver.promise.Promise {
+  each(fn: Function): webdriver.promise.Promise<any> {
     return this.map(fn).then((): any => { return null; });
   }
 
@@ -542,7 +542,7 @@ export class ElementArrayFinder extends WebdriverWebElement {
    * @returns {!webdriver.promise.Promise} A promise that resolves to an array
    *     of values returned by the map function.
    */
-  map(mapFn: Function): webdriver.promise.Promise {
+  map(mapFn: Function): webdriver.promise.Promise<any> {
     return this.asElementFinders_().then((arr: ElementFinder[]) => {
       let list = arr.map((elementFinder: ElementFinder, index: number) => {
         let mapResult = mapFn(elementFinder, index);
@@ -584,7 +584,8 @@ export class ElementArrayFinder extends WebdriverWebElement {
    * @returns {!webdriver.promise.Promise} A promise that resolves to the final
    *     value of the accumulator.
    */
-  reduce(reduceFn: Function, initialValue: any): webdriver.promise.Promise {
+  reduce(reduceFn: Function, initialValue: any): webdriver.promise.Promise<any>
+      {
     let valuePromise = webdriver.promise.fulfilled(initialValue);
     return this.asElementFinders_().then((arr: ElementFinder[]) => {
       return arr.reduce(
@@ -691,7 +692,8 @@ export class ElementArrayFinder extends WebdriverWebElement {
 export class ElementFinder extends WebdriverWebElement {
   parentElementArrayFinder: ElementArrayFinder;
   elementArrayFinder_: ElementArrayFinder;
-  then: (fn: Function, errorFn: Function) => webdriver.promise.Promise = null;
+  then: (fn: Function, errorFn: Function) => webdriver.promise.Promise<any> =
+      null;
 
   constructor(
       private browser_: Browser, elementArrayFinder: ElementArrayFinder) {
@@ -1026,7 +1028,7 @@ export class ElementFinder extends WebdriverWebElement {
    * @returns {!webdriver.promise.Promise.<boolean>} A promise that will be
    *     resolved to whether the two WebElements are equal.
    */
-  equals(element: any): webdriver.promise.Promise {
+  equals(element: any): webdriver.promise.Promise<any> {
     return webdriver.WebElement.equals(
         this.getWebElement(),
         element.getWebElement ? element.getWebElement() : element);
diff --git a/lib/globals.d.ts b/lib/globals.d.ts
index eb8f25295..ca59d0865 100644
--- a/lib/globals.d.ts
+++ b/lib/globals.d.ts
@@ -63,7 +63,7 @@ declare namespace webdriver {
   }
 
   namespace promise {
-  interface Promise {
+  interface Promise<T> {
     controlFlow: Function;
     then: Function;
   }