Myujth

In a C# .Net 4.7.2 WPF project, I'm loading the GeckoWebBrowser component from a UserControl. I'm using the nuget package id="Geckofx60.64" version="60.0.18" .

My solution and project are configured with "Any CPU" in VS2017.

In order to get the Firefox64 repository, I add the nuget package id="Geckofx60.64.Windows" version="0.7.0".

Everything is OK, then I'm calling an "index.html" page with the following code

public partial class Simulator : UserControl

 readonly string indexPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Templates", "index.html");

 private GeckoWebBrowser _browser;

 public Simulator()
 
 InitializeComponent();
 Xpcom.Initialize("Firefox64");

 var host = new WindowsFormsHost();
 _browser = new GeckoWebBrowser();

 host.Child = _browser;
 GridWeb.Children.Add(host);
 

 private void Datacontext_ConfigurationChanged(object sender, System.EventArgs e)
 
 Dispatcher.Invoke(() =>
 _browser.Navigate(indexPath)
 );
 

 private void Simulator_OnDataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
 
 var datacontext = DataContext as ServicesViewModel;
 if (datacontext != null)
 
 datacontext.ConfigurationChanged -= Datacontext_ConfigurationChanged;
 datacontext.ConfigurationChanged += Datacontext_ConfigurationChanged;
 
 

The logic in my application is to refresh the browser each time I have some changes in my local objects.

Datacontext_ConfigurationChanged will be called for each change.

It's working pretty well except that I can receive this exception randomly during a refresh

"System.AccessViolationException: Attempted to read or write protected memory.."

This exception crashes my app, and I can't find any solution for this exception.
Thank you for your help !

I changed to Geckofx45.64 and now it's ok..