Ensure that your Windows 11 operating system is fully updated. Sometimes, compatibility issues arise due to outdated system components. Go to Settings > Update & Security > Windows Update and check for any available updates. Install any pending updates and then try downloading Firefox again.

Is there a work around to remedy this problem?

Try downloading the full offline setup from https://www.mozilla.org/firefox/all/#product-desktop-release in case you were trying to install with the small online stub installer.