• Fixes Ordner im Explorer oeffnen when Firefox omits tab.url from a menu event.
• Gets the current Nextcloud page URL directly from the content script and menu event without requesting the broad tabs permission.
• Keeps strict HTTPS, configured-origin, Nextcloud Files route, and Windows path validation in the local helper.
• Adds an automated regression test for both extension menu paths.

Windows note: the installer is not yet Authenticode-signed. Verify it with the
published SHA-256 checksum. The Firefox ZIP is the AMO submission package and is
signed by Mozilla only after AMO accepts the version.

• Adds a guided one-click Windows installer and integrated setup window.
• Stores the Nextcloud app password securely in Windows Credential Manager.
• Reconnects Windows WebDAV automatically when a session is lost.
• Removes manual PowerShell, ZIP, net use, and drive-mapping setup steps.
• Removes the Firefox storage permission and keeps connection settings in the local helper.
• Adds strict HTTPS, configured-origin, and Windows path validation.
• Adds status, repair, clean uninstall, and security self-test support.

Windows note: the installer is not yet Authenticode-signed. Verify it with the
published SHA-256 checksum. The Firefox ZIP is the AMO submission package and is
signed by Mozilla only after AMO accepts the version.

Fixes the update package for the existing AMO listing.

The extension keeps the required AMO/WebExtension ID and uses a neutral Windows native messaging host name for the local helper.