Thanks for joining this conversation, @David4823.
The reason why you need to set Internet Explorer (IE) as the default browser is that QuickBooks uses this to download updates. Additionally, the Script Error prompt happens when the settings of the default browser are incorrect or misconfigured.
If you already performed the troubleshooting steps shared by my colleagues above and the issue persists, I highly suggest contacting our Phone Support team so they can check your account using their screen-sharing (remote access) tool in a secure environment. They are also able to perform other troubleshooting to fix this for you.
Here's how to reach them:
- Open QBDT and to go the Help menu at the top to get to the QuickBooks Desktop Help.
- Select Contact Us at the bottom to connect with our live support.
Just in case, I'll add this article for future reference: What to do if you can't open QuickBooks Desktop.
Please leave a comment in this thread if you have any other issues or concerns. I'll be here to help. Have a great rest of the day!
