Thanks for reaching out! Can you tell me a bit more about what happens when you try to open those sites? For example: Do you get an error message (like “Server not found” or “Secure connection failed”)? Do the pages load but look broken? Or does nothing happen at all? In the meantime, here are a few quick checks you can try: Clear the cache – Go to Menu ≡ → Settings → Privacy & Security → Clear Data. Check extensions – Try opening the site in a Private Window (Ctrl+Shift+P / Cmd+Shift+P). If it works there, an add-on may be blocking it. DNS/connection – Restart your modem/router, or temporarily try another connection (like hotspot) to rule out network issues. Update Firefox – Make sure you’re on the latest version.