diff --git a/docs/api/extensions.md b/docs/api/extensions.md
index c9970d066c7e6..32db577b64727 100644
--- a/docs/api/extensions.md
+++ b/docs/api/extensions.md
@@ -40,6 +40,23 @@ We support the following extensions APIs, with some caveats. Other APIs may
 additionally be supported, but support for any APIs not listed here is
 provisional and may be removed.
 
+### Supported Manifest Keys
+
+- `name`
+- `version`
+- `author`
+- `permissions`
+- `content_scripts`
+- `default_locale`
+- `devtools_page`
+- `short_name`
+- `host_permissions` (Manifest V3)
+- `manifest_version`
+- `background` (Manifest V2)
+- `minimum_chrome_version`
+
+See [Manifest file format](https://developer.chrome.com/docs/extensions/mv3/manifest/) for more information about the purpose of each possible key.
+
 ### `chrome.devtools.inspectedWindow`
 
 All features of this API are supported.
diff --git a/shell/common/extensions/api/_manifest_features.json b/shell/common/extensions/api/_manifest_features.json
index b860cc40e2391..248fe3df2be47 100644
--- a/shell/common/extensions/api/_manifest_features.json
+++ b/shell/common/extensions/api/_manifest_features.json
@@ -7,6 +7,10 @@
 // well as feature.h, simple_feature.h, and feature_provider.h.
 
 {
+  "author": {
+    "channel": "stable",
+    "extension_types": "all"
+  },
   "content_scripts": {
     "channel": "stable",
     "extension_types": ["extension"]
@@ -15,8 +19,17 @@
     "channel": "stable",
     "extension_types": ["extension"]
   },
+  "host_permissions": {
+    "channel": "stable",
+    "extension_types": ["extension"],
+    "min_manifest_version": 3
+  },
   "minimum_chrome_version": {
     "channel": "stable",
     "extension_types": ["extension"]
+  },
+  "short_name": {
+    "channel": "stable",
+    "extension_types": "all"
   }
 }
diff --git a/spec/extensions-spec.ts b/spec/extensions-spec.ts
index 37a000901101f..0f2e114adc9b4 100644
--- a/spec/extensions-spec.ts
+++ b/spec/extensions-spec.ts
@@ -69,6 +69,67 @@ describe('chrome extensions', () => {
     `)).to.eventually.have.property('id');
   });
 
+  describe('host_permissions', async () => {
+    let customSession: Session;
+    let w: BrowserWindow;
+
+    beforeEach(() => {
+      customSession = session.fromPartition(`persist:${require('uuid').v4()}`);
+      w = new BrowserWindow({
+        show: false,
+        webPreferences: {
+          session: customSession,
+          sandbox: true
+        }
+      });
+    });
+
+    afterEach(closeAllWindows);
+
+    it('recognize malformed host permissions', async () => {
+      await w.loadURL(url);
+
+      const extPath = path.join(fixtures, 'extensions', 'host-permissions', 'malformed');
+      customSession.loadExtension(extPath);
+
+      const warning = await new Promise(resolve => { process.on('warning', resolve); });
+
+      const malformedHost = /Permission 'malformed_host' is unknown or URL pattern is malformed/;
+
+      expect(warning).to.match(malformedHost);
+    });
+
+    it('can grant special privileges to urls with host permissions', async () => {
+      const extPath = path.join(fixtures, 'extensions', 'host-permissions', 'privileged-tab-info');
+      await customSession.loadExtension(extPath);
+
+      await w.loadURL(url);
+
+      const message = { method: 'query' };
+      w.webContents.executeJavaScript(`window.postMessage('${JSON.stringify(message)}', '*')`);
+
+      const [,, responseString] = await once(w.webContents, 'console-message');
+      const response = JSON.parse(responseString);
+
+      expect(response).to.have.lengthOf(1);
+
+      const tab = response[0];
+      expect(tab).to.have.property('url').that.is.a('string');
+      expect(tab).to.have.property('title').that.is.a('string');
+      expect(tab).to.have.property('active').that.is.a('boolean');
+      expect(tab).to.have.property('autoDiscardable').that.is.a('boolean');
+      expect(tab).to.have.property('discarded').that.is.a('boolean');
+      expect(tab).to.have.property('groupId').that.is.a('number');
+      expect(tab).to.have.property('highlighted').that.is.a('boolean');
+      expect(tab).to.have.property('id').that.is.a('number');
+      expect(tab).to.have.property('incognito').that.is.a('boolean');
+      expect(tab).to.have.property('index').that.is.a('number');
+      expect(tab).to.have.property('pinned').that.is.a('boolean');
+      expect(tab).to.have.property('selected').that.is.a('boolean');
+      expect(tab).to.have.property('windowId').that.is.a('number');
+    });
+  });
+
   it('supports minimum_chrome_version manifest key', async () => {
     const customSession = session.fromPartition(`persist:${require('uuid').v4()}`);
     const w = new BrowserWindow({
@@ -81,7 +142,7 @@ describe('chrome extensions', () => {
 
     await w.loadURL('about:blank');
 
-    const extPath = path.join(fixtures, 'extensions', 'chrome-too-low-version');
+    const extPath = path.join(fixtures, 'extensions', 'minimum-chrome-version');
     const load = customSession.loadExtension(extPath);
     await expect(load).to.eventually.be.rejectedWith(
       `Loading extension at ${extPath} failed with: This extension requires Chromium version 999 or greater.`
diff --git a/spec/fixtures/extensions/host-permissions/malformed/manifest.json b/spec/fixtures/extensions/host-permissions/malformed/manifest.json
new file mode 100644
index 0000000000000..0e4ce8c20271e
--- /dev/null
+++ b/spec/fixtures/extensions/host-permissions/malformed/manifest.json
@@ -0,0 +1,9 @@
+{
+  "name": "malformed",
+  "version": "0.1",
+  "manifest_version": 3,
+  "description": "Extension with invalid host_permissions",
+  "host_permissions": [
+    "malformed_host"
+  ]
+}
\ No newline at end of file
diff --git a/spec/fixtures/extensions/host-permissions/privileged-tab-info/background.js b/spec/fixtures/extensions/host-permissions/privileged-tab-info/background.js
new file mode 100644
index 0000000000000..7725abe038b66
--- /dev/null
+++ b/spec/fixtures/extensions/host-permissions/privileged-tab-info/background.js
@@ -0,0 +1,6 @@
+/* global chrome */
+
+chrome.runtime.onMessage.addListener((_request, _sender, sendResponse) => {
+  chrome.tabs.query({}).then(sendResponse);
+  return true;
+});
diff --git a/spec/fixtures/extensions/host-permissions/privileged-tab-info/main.js b/spec/fixtures/extensions/host-permissions/privileged-tab-info/main.js
new file mode 100644
index 0000000000000..2e9cd5b5d9d91
--- /dev/null
+++ b/spec/fixtures/extensions/host-permissions/privileged-tab-info/main.js
@@ -0,0 +1,11 @@
+/* global chrome */
+
+chrome.runtime.onMessage.addListener((request, _sender, sendResponse) => {
+  sendResponse(request);
+});
+
+window.addEventListener('message', () => {
+  chrome.runtime.sendMessage({ method: 'query' }, response => {
+    console.log(JSON.stringify(response));
+  });
+}, false);
diff --git a/spec/fixtures/extensions/host-permissions/privileged-tab-info/manifest.json b/spec/fixtures/extensions/host-permissions/privileged-tab-info/manifest.json
new file mode 100644
index 0000000000000..55dfe2696d740
--- /dev/null
+++ b/spec/fixtures/extensions/host-permissions/privileged-tab-info/manifest.json
@@ -0,0 +1,14 @@
+{
+  "name": "privileged-tab-info",
+  "version": "0.1",
+  "manifest_version": 3,
+  "content_scripts": [{
+    "matches": [ "<all_urls>"],
+    "js": ["main.js"],
+    "run_at": "document_start"
+  }],
+  "host_permissions": ["http://*/*"],
+  "background": {
+    "service_worker": "background.js"
+  }
+}
\ No newline at end of file
diff --git a/spec/fixtures/extensions/chrome-too-low-version/main.js b/spec/fixtures/extensions/minimum-chrome-version/main.js
similarity index 100%
rename from spec/fixtures/extensions/chrome-too-low-version/main.js
rename to spec/fixtures/extensions/minimum-chrome-version/main.js
diff --git a/spec/fixtures/extensions/chrome-too-low-version/manifest.json b/spec/fixtures/extensions/minimum-chrome-version/manifest.json
similarity index 100%
rename from spec/fixtures/extensions/chrome-too-low-version/manifest.json
rename to spec/fixtures/extensions/minimum-chrome-version/manifest.json