diff --git a/app/NativeMacReceiverSelector/AppDelegate.swift b/app/NativeMacReceiverSelector/AppDelegate.swift
index 1458c88..aa2e50c 100644
--- a/app/NativeMacReceiverSelector/AppDelegate.swift
+++ b/app/NativeMacReceiverSelector/AppDelegate.swift
@@ -8,15 +8,9 @@ class AppDelegate : NSObject, NSApplicationDelegate {
 
 
     func applicationDidFinishLaunching (_ aNotification: Notification) {
-        let window = NSPanel(
+        let window = NSWindow(
                 contentRect: NSZeroRect
-              , styleMask: [
-                    .titled
-                  , .closable
-                  , .hudWindow
-                  , .utilityWindow
-                  , .nonactivatingPanel
-                ]
+              , styleMask: [ .titled, .closable ]
               , backing: .buffered
               , defer: false)
 
diff --git a/app/NativeMacReceiverSelector/ViewController.swift b/app/NativeMacReceiverSelector/ViewController.swift
index 413848d..a09dd30 100644
--- a/app/NativeMacReceiverSelector/ViewController.swift
+++ b/app/NativeMacReceiverSelector/ViewController.swift
@@ -7,13 +7,15 @@ class ViewController : NSViewController {
     var mediaTypePopUpButton: NSPopUpButton!
     var receiverViews = [ReceiverView]()
 
+    var filePath: String?
+
 
     override func loadView () {
-        let visualEffectView = NSVisualEffectView()
+        /*let visualEffectView = NSVisualEffectView()
         visualEffectView.blendingMode = .behindWindow
-        visualEffectView.state = .active
+        visualEffectView.state = .active*/
 
-        self.view = visualEffectView
+        self.view = NSView()
     }
 
     override func viewDidLoad () {
@@ -71,34 +73,35 @@ class ViewController : NSViewController {
             initData.i18n_mediaTypeApp
           , initData.i18n_mediaTypeTab
           , initData.i18n_mediaTypeScreen
+          , initData.i18n_mediaTypeFile
         ])
 
+        let mediaTypePopUpButtonMenu = self.mediaTypePopUpButton.menu!
+        mediaTypePopUpButtonMenu.delegate = self
+
         let appItem = self.mediaTypePopUpButton
             .item(withTitle: initData.i18n_mediaTypeApp)!
         let tabItem = self.mediaTypePopUpButton
             .item(withTitle: initData.i18n_mediaTypeTab)!
         let screenItem = self.mediaTypePopUpButton
             .item(withTitle: initData.i18n_mediaTypeScreen)!
+        let fileItem = self.mediaTypePopUpButton
+            .item(withTitle: initData.i18n_mediaTypeFile)!
+
+        mediaTypePopUpButtonMenu
+            .insertItem(NSMenuItem.separator()
+                  , at: mediaTypePopUpButtonMenu.index(of: fileItem))
 
         // Set tags to enum value
         appItem.tag = MediaType.app.rawValue
         tabItem.tag = MediaType.tab.rawValue
         screenItem.tag = MediaType.screen.rawValue
+        fileItem.tag = MediaType.file.rawValue
 
-        if (initData.availableMediaTypes & appItem.tag) == 0 {
-            self.mediaTypePopUpButton
-                .item(withTitle: initData.i18n_mediaTypeApp)?
-                .isEnabled = false
-        }
-        if (initData.availableMediaTypes & tabItem.tag) == 0 {
-            self.mediaTypePopUpButton
-                .item(withTitle: initData.i18n_mediaTypeTab)?
-                .isEnabled = false
-        }
-        if (initData.availableMediaTypes & screenItem.tag) == 0 {
-            self.mediaTypePopUpButton
-                .item(withTitle: initData.i18n_mediaTypeScreen)?
-                .isEnabled = false
+        for item in self.mediaTypePopUpButton.itemArray {
+            if (initData.availableMediaTypes & item.tag) == 0 {
+                item.isEnabled = false
+            }
         }
 
         self.mediaTypePopUpButton.selectItem(
@@ -155,6 +158,50 @@ class ViewController : NSViewController {
     }
 }
 
+extension ViewController : NSMenuDelegate {
+    func menuDidClose (_ menu: NSMenu) {
+        let mediaType = MediaType(
+                rawValue: self.mediaTypePopUpButton.selectedItem!.tag)!
+
+        let fileItem = self.mediaTypePopUpButton
+                .item(at: self.mediaTypePopUpButton.indexOfItem(
+                        withTag: MediaType.file.rawValue))!
+
+        if (mediaType == .file) {
+            let panel = NSOpenPanel()
+            panel.allowsMultipleSelection = false
+            panel.allowedFileTypes = [ "aac", "mp3", "mp4", "wav", "webm" ]
+            panel.canChooseDirectories = false
+            panel.canCreateDirectories = false
+            panel.canChooseFiles = true
+
+            panel.beginSheetModal(for: self.view.window!) { (result) in
+                if (result == .OK) {
+                    let url = panel.urls[0]
+                    let fileName = url.lastPathComponent
+
+                    // Truncate file name and set as title
+                    fileItem.title = fileName.count > 12
+                        ? "\(fileName.prefix(12))..."
+                        : fileName
+
+                    self.filePath = url.path
+
+                    return
+                } else {
+                    // Re-select the default media type item
+                    self.mediaTypePopUpButton.selectItem(
+                            withTag: self.initData.defaultMediaType.rawValue)
+                }
+            }
+        }
+
+
+        // Reset file item
+        fileItem.title = self.initData.i18n_mediaTypeFile
+        self.filePath = nil
+    }
+}
 
 extension ViewController : ReceiverViewDelegate {
     func didCast (_ receiver: Receiver) {
@@ -173,7 +220,8 @@ extension ViewController : ReceiverViewDelegate {
 
             let selection = ReceiverSelection(
                     receiver: receiver
-                  , mediaType: mediaType)
+                  , mediaType: mediaType
+                  , filePath: self.filePath ?? nil)
 
             let jsonData = try JSONEncoder().encode(selection)
             let jsonString = String(data: jsonData, encoding: .utf8)
diff --git a/app/NativeMacReceiverSelector/models/InitData.swift b/app/NativeMacReceiverSelector/models/InitData.swift
index a7f7b18..647aad7 100644
--- a/app/NativeMacReceiverSelector/models/InitData.swift
+++ b/app/NativeMacReceiverSelector/models/InitData.swift
@@ -8,6 +8,7 @@ struct InitData : Codable {
     let i18n_mediaTypeApp: String
     let i18n_mediaTypeTab: String
     let i18n_mediaTypeScreen: String
+    let i18n_mediaTypeFile: String
     let i18n_mediaSelectCastLabel: String
     let i18n_mediaSelectToLabel: String
 }
diff --git a/app/NativeMacReceiverSelector/models/MediaType.swift b/app/NativeMacReceiverSelector/models/MediaType.swift
index 38df504..7e1f569 100644
--- a/app/NativeMacReceiverSelector/models/MediaType.swift
+++ b/app/NativeMacReceiverSelector/models/MediaType.swift
@@ -5,4 +5,5 @@ enum MediaType: Int, Codable {
     case app = 1
     case tab = 2
     case screen = 4
+    case file = 8
 }
diff --git a/app/NativeMacReceiverSelector/models/ReceiverSelection.swift b/app/NativeMacReceiverSelector/models/ReceiverSelection.swift
index 3881fab..79341bf 100644
--- a/app/NativeMacReceiverSelector/models/ReceiverSelection.swift
+++ b/app/NativeMacReceiverSelector/models/ReceiverSelection.swift
@@ -1,4 +1,5 @@
 struct ReceiverSelection : Codable {
     let receiver: Receiver
     let mediaType: MediaType
+    let filePath: String?
 }
diff --git a/ext/src/_locales/en/messages.json b/ext/src/_locales/en/messages.json
index 1f982b6..cf04c63 100755
--- a/ext/src/_locales/en/messages.json
+++ b/ext/src/_locales/en/messages.json
@@ -21,6 +21,10 @@
         "message": "Screen"
       , "description": "Receiver selector media type <option> text for screen."
     }
+  , "popupMediaTypeFile": {
+        "message": "Browse..."
+      , "description": "Receiver selector media type <option> text for opening a file selector dialog."
+    }
 
   , "popupMediaSelectCastLabel": {
         "message": "Cast"
diff --git a/ext/src/receiver_selectors/NativeMacReceiverSelector.ts b/ext/src/receiver_selectors/NativeMacReceiverSelector.ts
index 7026902..c6bc071 100644
--- a/ext/src/receiver_selectors/NativeMacReceiverSelector.ts
+++ b/ext/src/receiver_selectors/NativeMacReceiverSelector.ts
@@ -70,6 +70,7 @@ export default class NativeMacReceiverSelector
               , i18n_mediaTypeApp: _("popupMediaTypeApp")
               , i18n_mediaTypeTab: _("popupMediaTypeTab")
               , i18n_mediaTypeScreen: _("popupMediaTypeScreen")
+              , i18n_mediaTypeFile: _("popupMediaTypeFile")
               , i18n_mediaSelectCastLabel: _("popupMediaSelectCastLabel")
               , i18n_mediaSelectToLabel: _("popupMediaSelectToLabel")
             })
diff --git a/ext/src/receiver_selectors/ReceiverSelector.ts b/ext/src/receiver_selectors/ReceiverSelector.ts
index f146864..6c618b9 100644
--- a/ext/src/receiver_selectors/ReceiverSelector.ts
+++ b/ext/src/receiver_selectors/ReceiverSelector.ts
@@ -7,11 +7,13 @@ export enum ReceiverSelectorMediaType {
     App = 1
   , Tab = 2
   , Screen = 4
+  , File = 8
 }
 
 export interface ReceiverSelection {
     receiver: Receiver;
     mediaType: ReceiverSelectorMediaType;
+    filePath?: string;
 }
 
 export type ReceiverSelectorSelectedEvent = CustomEvent<ReceiverSelection>;
diff --git a/ext/src/shim/cast/classes/ApiConfig.ts b/ext/src/shim/cast/classes/ApiConfig.ts
index 304d61e..6fd107c 100755
--- a/ext/src/shim/cast/classes/ApiConfig.ts
+++ b/ext/src/shim/cast/classes/ApiConfig.ts
@@ -31,6 +31,7 @@ export default class ApiConfig {
           , public _availableMediaTypes: ReceiverSelectorMediaType
                     = ReceiverSelectorMediaType.App
                     | ReceiverSelectorMediaType.Tab
-                    | ReceiverSelectorMediaType.Screen) {
+                    | ReceiverSelectorMediaType.Screen
+                    | ReceiverSelectorMediaType.File) {
     }
 }
diff --git a/ext/src/ui/popup/index.tsx b/ext/src/ui/popup/index.tsx
index 1da51e0..5552d76 100755
--- a/ext/src/ui/popup/index.tsx
+++ b/ext/src/ui/popup/index.tsx
@@ -30,11 +30,13 @@ interface PopupAppState {
     mediaType: ReceiverSelectorMediaType;
     availableMediaTypes: ReceiverSelectorMediaType;
     isLoading: boolean;
+    filePath: string;
 }
 
 class PopupApp extends Component<{}, PopupAppState> {
     private port: browser.runtime.Port;
     private win: browser.windows.Window;
+    private defaultMediaType: ReceiverSelectorMediaType;
 
     constructor (props: {}) {
         super(props);
@@ -44,6 +46,7 @@ class PopupApp extends Component<{}, PopupAppState> {
           , mediaType: ReceiverSelectorMediaType.App
           , availableMediaTypes: ReceiverSelectorMediaType.App
           , isLoading: false
+          , filePath: null
         };
 
         // Store window ref
@@ -63,9 +66,11 @@ class PopupApp extends Component<{}, PopupAppState> {
         this.port.onMessage.addListener((message: Message) => {
             switch (message.subject) {
                 case "popup:/populateReceiverList": {
+                    this.defaultMediaType = message.data.defaultMediaType;
+
                     this.setState({
                         receivers: message.data.receivers
-                      , mediaType: message.data.defaultMediaType
+                      , mediaType: this.defaultMediaType
                       , availableMediaTypes: message.data.availableMediaTypes
                     });
 
@@ -93,6 +98,18 @@ class PopupApp extends Component<{}, PopupAppState> {
     }
 
     public render () {
+        let truncatedFileName: string;
+
+        if (this.state.filePath) {
+            const filePath = this.state.filePath;
+            const fileName = filePath.substring(filePath.lastIndexOf("/") + 1);
+
+            truncatedFileName = fileName.length > 12
+                ? `${fileName.substring(0, 12)}...`
+                : fileName;
+        }
+
+
         return (
             <div>
                 <div className="media-select">
@@ -115,6 +132,16 @@ class PopupApp extends Component<{}, PopupAppState> {
                                         & ReceiverSelectorMediaType.Screen) }>
                             { _("popupMediaTypeScreen") }
                         </option>
+                        <option disabled>
+                            ─────
+                        </option>
+                        <option value={ ReceiverSelectorMediaType.File }
+                                disabled={ !(this.state.availableMediaTypes
+                                        & ReceiverSelectorMediaType.File) }>
+                            { this.state.filePath
+                                ? truncatedFileName
+                                : _("popupMediaTypeFile") }
+                        </option>
                     </select>
                     { _("popupMediaSelectToLabel") }
                 </div>
@@ -140,13 +167,45 @@ class PopupApp extends Component<{}, PopupAppState> {
           , data: {
                 receiver
               , mediaType: this.state.mediaType
+              , filePath: this.state.filePath
             }
         });
     }
 
     private onSelectChange (ev: React.ChangeEvent<HTMLSelectElement>) {
+        const mediaType = parseInt(ev.target.value);
+
+        if (mediaType === ReceiverSelectorMediaType.File) {
+            try {
+                const filePath = window.prompt();
+
+                // Validate URL
+                const fileUrl = new URL(filePath.startsWith("file://")
+                    ? filePath
+                    : `file://${filePath}`);
+
+                this.setState({
+                    mediaType
+                  , filePath
+                });
+
+                return;
+            } catch (err) {
+                // Don't need to handle any errors
+            }
+
+            // Set media type to default if failed to set filePath
+            this.setState({
+                mediaType: this.defaultMediaType
+            });
+        } else {
+            this.setState({
+                mediaType
+            });
+        }
+
         this.setState({
-            mediaType: parseInt(ev.target.value)
+            filePath: null
         });
     }
 }