diff --git a/src/main/permissionsManager.test.js b/src/main/permissionsManager.test.js
index 59473dce..b94308cb 100644
--- a/src/main/permissionsManager.test.js
+++ b/src/main/permissionsManager.test.js
@@ -175,4 +175,17 @@ describe('main/PermissionsManager', () => {
         expect(permissionsManager.writeToFile).toHaveBeenCalled();
         expect(cb).toHaveBeenCalledWith(false);
     });
+
+    it('should only pop dialog once upon multiple permission checks', async () => {
+        const permissionsManager = new PermissionsManager('anyfile.json');
+        permissionsManager.writeToFile = jest.fn();
+        const cb = jest.fn();
+        dialog.showMessageBox.mockReturnValue(Promise.resolve({response: 0}));
+        await Promise.all([
+            permissionsManager.handlePermissionRequest({id: 2}, 'notifications', cb, {securityOrigin: 'http://anyurl.com'}),
+            permissionsManager.handlePermissionRequest({id: 2}, 'notifications', cb, {securityOrigin: 'http://anyurl.com'}),
+            permissionsManager.handlePermissionRequest({id: 2}, 'notifications', cb, {securityOrigin: 'http://anyurl.com'}),
+        ]);
+        expect(dialog.showMessageBox).toHaveBeenCalledTimes(1);
+    });
 });
diff --git a/src/main/permissionsManager.ts b/src/main/permissionsManager.ts
index 3dc421e0..672421be 100644
--- a/src/main/permissionsManager.ts
+++ b/src/main/permissionsManager.ts
@@ -50,6 +50,14 @@ type Permissions = {
 };
 
 export class PermissionsManager extends JsonFileManager<Permissions> {
+    private inflightPermissionChecks: Set<string>;
+
+    constructor(file: string) {
+        super(file);
+
+        this.inflightPermissionChecks = new Set();
+    }
+
     handlePermissionRequest = async (
         webContents: WebContents,
         permission: string,
@@ -120,6 +128,13 @@ export class PermissionsManager extends JsonFileManager<Permissions> {
                 return false;
             }
 
+            // Make sure we don't pop multiple dialogs for the same permission check
+            const permissionKey = `${parsedURL.origin}:${permission}`;
+            if (this.inflightPermissionChecks.has(permissionKey)) {
+                return false;
+            }
+            this.inflightPermissionChecks.add(permissionKey);
+
             // Show the dialog to ask the user
             const {response} = await dialog.showMessageBox(mainWindow, {
                 title: localizeMessage('main.permissionsManager.checkPermission.dialog.title', 'Permission Requested'),
@@ -144,6 +159,8 @@ export class PermissionsManager extends JsonFileManager<Permissions> {
             };
             this.writeToFile();
 
+            this.inflightPermissionChecks.delete(permissionKey);
+
             if (response > 0) {
                 return false;
             }