Hi! I understand you're seeing a "Secure Connection Failed" error in Firefox and a "closed the connection" message in Edge when trying to use the MyHeritage app, and you're also requesting a refund. Let's first try to resolve the connection issue so you can access the service smoothly.

Could you please confirm a few things for me?
- Are you trying to access the MyHeritage website or using the MyHeritage app on your Windows 10 device?
- Have you recently changed any network settings, VPNs, or security software that might block secure connections?
- Is the date and time on your computer set correctly? An incorrect system clock can cause secure connection errors.
- Have you tried clearing your browser cache or using a different network connection?

Meanwhile, here are some steps you can try to fix this secure connection issue:

1. Check Date and Time: Make sure your Windows 10 system date and time are accurate. Incorrect dates can disrupt secure connections.
2. Clear Browser Cache: In both Firefox and Edge, clear your browsing history and cached files. For Firefox: Menu > Settings > Privacy & Security > Clear Data. For Edge: Settings > Privacy, search, and services > Clear browsing data.
3. Disable Proxy or VPN: If you're using any proxy servers or VPNs, try disabling them temporarily to see if that affects connectivity.
4. Check Security Software: Some antivirus or security programs scan encrypted connections and may block access. Try temporarily disabling this feature or the antivirus to test.
5. Try Refreshing Firefox: Firefox has a “Refresh Firefox” feature that resets settings to default without deleting essential data and can solve connection errors.
6. Update Browsers: Ensure both browsers are updated to the latest version.
7. Test with Another Network: If possible, try connecting using a different Wi-Fi network or using your phone’s hotspot, to rule out network-related blocks.

If after trying these steps, the issue persists, I can assist you further with advanced troubleshooting or escalate the refund request for you.

Would you like me to guide you step-by-step through any of these fixes? And could you please share if you have already tried some of these so I don’t repeat them?

Looking forward to helping you get this sorted!