JxBrowser runs all native code and Chromium engine in separate processes. When unexpected error happens in Chromium engine you might see unexpected process termination. To find out root cause of the error we need that you collect error info from generated crash dump files.
When error happens in Chromium engine, the crash dump file with all necessary information about the error is automatically generated on Mac OS X. You can find generated crash dump files in Console app, User Diagnostic Reports log list. JxBrowser report has the jxbrowser_2015-04-05-150659_Vladimirs-MacBook-Pro.crash name.
Copy content of this crash report and send it to us as attachment to your support ticket or share the generated core dump file with the JxBrowser Support team using an online file sharing service such as Dropbox, Google Drive, etc.
Here's how crash report in Console app looks: