feat: Expose ability to enable browser extensions in WebView2 (#11056)

.changes/change-pr-11056.md

@@ -0,0 +1,8 @@
+---
+"tauri": patch:feat
+"tauri-runtime-wry": patch:feat
+"tauri-runtime": patch:feat
+"tauri-utils": patch:feat
+---
+
+Expose the ability to enabled browser extensions in WebView2 on Windows.

crates/tauri-cli/config.schema.json

@@ -481,6 +481,11 @@
           "description": "Whether page zooming by hotkeys is enabled\n\n ## Platform-specific:\n\n - **Windows**: Controls WebView2's [`IsZoomControlEnabled`](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2settings?view=webview2-winrt-1.0.2420.47#iszoomcontrolenabled) setting.\n - **MacOS / Linux**: Injects a polyfill that zooms in and out with `ctrl/command` + `-/=`,\n 20% in each step, ranging from 20% to 1000%. Requires `webview:allow-set-webview-zoom` permission\n\n - **Android / iOS**: Unsupported.",
           "default": false,
           "type": "boolean"
+        },
+        "browserExtensionsEnabled": {
+          "description": "Whether browser extensions can be installed for the webview process\n\n ## Platform-specific:\n\n - **Windows**: Enables the WebView2 environment's [`AreBrowserExtensionsEnabled`](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2environmentoptions?view=webview2-winrt-1.0.2739.15#arebrowserextensionsenabled)\n - **MacOS / Linux / iOS / Android** - Unsupported.",
+          "default": false,
+          "type": "boolean"
         }
       },
       "additionalProperties": false

crates/tauri-runtime-wry/Cargo.toml

@@ -17,7 +17,7 @@ rustc-args = ["--cfg", "docsrs"]
 rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
-wry = { version = "0.43.1", default-features = false, features = [
+wry = { version = "0.44.0", default-features = false, features = [
   "drag-drop",
   "protocol",
   "os-webview",

crates/tauri-runtime-wry/src/lib.rs

@@ -4072,6 +4072,12 @@ fn create_webview<T: UserEvent>(
     webview_builder = webview_builder.with_https_scheme(false);
   }
 
+  #[cfg(windows)]
+  {
+    webview_builder = webview_builder
+      .with_browser_extensions_enabled(webview_attributes.browser_extensions_enabled);
+  }
+
   webview_builder = webview_builder.with_ipc_handler(create_ipc_handler(
     kind,
     window_id.clone(),

crates/tauri-runtime/src/webview.rs

@@ -208,6 +208,7 @@ pub struct WebviewAttributes {
   pub auto_resize: bool,
   pub proxy_url: Option<Url>,
   pub zoom_hotkeys_enabled: bool,
+  pub browser_extensions_enabled: bool,
 }
 
 impl From<&WindowConfig> for WebviewAttributes {
@@ -235,6 +236,7 @@ impl From<&WindowConfig> for WebviewAttributes {
       builder = builder.proxy_url(url.to_owned());
     }
     builder = builder.zoom_hotkeys_enabled(config.zoom_hotkeys_enabled);
+    builder = builder.browser_extensions_enabled(config.browser_extensions_enabled);
     builder
   }
 }
@@ -258,6 +260,7 @@ impl WebviewAttributes {
       auto_resize: false,
       proxy_url: None,
       zoom_hotkeys_enabled: false,
+      browser_extensions_enabled: false,
     }
   }
 
@@ -363,6 +366,18 @@ impl WebviewAttributes {
     self.zoom_hotkeys_enabled = enabled;
     self
   }
+
+  /// Whether browser extensions can be installed for the webview process
+  ///
+  /// ## Platform-specific:
+  ///
+  /// - **Windows**: Enables the WebView2 environment's [`AreBrowserExtensionsEnabled`](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2environmentoptions?view=webview2-winrt-1.0.2739.15#arebrowserextensionsenabled)
+  /// - **MacOS / Linux / iOS / Android** - Unsupported.
+  #[must_use]
+  pub fn browser_extensions_enabled(mut self, enabled: bool) -> Self {
+    self.browser_extensions_enabled = enabled;
+    self
+  }
 }
 
 /// IPC handler.

crates/tauri-schema-generator/schemas/config.schema.json

@@ -481,6 +481,11 @@
           "description": "Whether page zooming by hotkeys is enabled\n\n ## Platform-specific:\n\n - **Windows**: Controls WebView2's [`IsZoomControlEnabled`](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2settings?view=webview2-winrt-1.0.2420.47#iszoomcontrolenabled) setting.\n - **MacOS / Linux**: Injects a polyfill that zooms in and out with `ctrl/command` + `-/=`,\n 20% in each step, ranging from 20% to 1000%. Requires `webview:allow-set-webview-zoom` permission\n\n - **Android / iOS**: Unsupported.",
           "default": false,
           "type": "boolean"
+        },
+        "browserExtensionsEnabled": {
+          "description": "Whether browser extensions can be installed for the webview process\n\n ## Platform-specific:\n\n - **Windows**: Enables the WebView2 environment's [`AreBrowserExtensionsEnabled`](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2environmentoptions?view=webview2-winrt-1.0.2739.15#arebrowserextensionsenabled)\n - **MacOS / Linux / iOS / Android** - Unsupported.",
+          "default": false,
+          "type": "boolean"
         }
       },
       "additionalProperties": false

crates/tauri-utils/src/config.rs

@@ -1454,6 +1454,14 @@ pub struct WindowConfig {
   /// - **Android / iOS**: Unsupported.
   #[serde(default)]
   pub zoom_hotkeys_enabled: bool,
+  /// Whether browser extensions can be installed for the webview process
+  ///
+  /// ## Platform-specific:
+  ///
+  /// - **Windows**: Enables the WebView2 environment's [`AreBrowserExtensionsEnabled`](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2environmentoptions?view=webview2-winrt-1.0.2739.15#arebrowserextensionsenabled)
+  /// - **MacOS / Linux / iOS / Android** - Unsupported.
+  #[serde(default)]
+  pub browser_extensions_enabled: bool,
 }
 
 impl Default for WindowConfig {
@@ -1501,6 +1509,7 @@ impl Default for WindowConfig {
       parent: None,
       proxy_url: None,
       zoom_hotkeys_enabled: false,
+      browser_extensions_enabled: false,
     }
   }
 }
@@ -2471,6 +2480,7 @@ mod build {
       let incognito = self.incognito;
       let parent = opt_str_lit(self.parent.as_ref());
       let zoom_hotkeys_enabled = self.zoom_hotkeys_enabled;
+      let browser_extensions_enabled = self.browser_extensions_enabled;
 
       literal_struct!(
         tokens,
@@ -2516,7 +2526,8 @@ mod build {
         window_effects,
         incognito,
         parent,
-        zoom_hotkeys_enabled
+        zoom_hotkeys_enabled,
+        browser_extensions_enabled
       );
     }
   }

crates/tauri/src/webview/mod.rs

@@ -775,6 +775,18 @@ fn main() {
     self.webview_attributes.zoom_hotkeys_enabled = enabled;
     self
   }
+
+  /// Whether browser extensions can be installed for the webview process
+  ///
+  /// ## Platform-specific:
+  ///
+  /// - **Windows**: Enables the WebView2 environment's [`AreBrowserExtensionsEnabled`](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2environmentoptions?view=webview2-winrt-1.0.2739.15#arebrowserextensionsenabled)
+  /// - **MacOS / Linux / iOS / Android** - Unsupported.
+  #[must_use]
+  pub fn browser_extensions_enabled(mut self, enabled: bool) -> Self {
+    self.webview_attributes.browser_extensions_enabled = enabled;
+    self
+  }
 }
 
 /// Webview.

crates/tauri/src/webview/webview_window.rs

@@ -876,6 +876,18 @@ impl<'a, R: Runtime, M: Manager<R>> WebviewWindowBuilder<'a, R, M> {
     self.webview_builder = self.webview_builder.zoom_hotkeys_enabled(enabled);
     self
   }
+
+  /// Whether browser extensions can be installed for the webview process
+  ///
+  /// ## Platform-specific:
+  ///
+  /// - **Windows**: Enables the WebView2 environment's [`AreBrowserExtensionsEnabled`](https://learn.microsoft.com/en-us/microsoft-edge/webview2/reference/winrt/microsoft_web_webview2_core/corewebview2environmentoptions?view=webview2-winrt-1.0.2739.15#arebrowserextensionsenabled)
+  /// - **MacOS / Linux / iOS / Android** - Unsupported.
+  #[must_use]
+  pub fn browser_extensions_enabled(mut self, enabled: bool) -> Self {
+    self.webview_builder = self.webview_builder.browser_extensions_enabled(enabled);
+    self
+  }
 }
 
 /// A type that wraps a [`Window`] together with a [`Webview`].