While (فارس الاسطوانات) is a known site for software downloads, especially in the Arabic-speaking community, it often hosts "cracked" or modified versions of software. For security and stability, it is highly recommended to download Mozilla Firefox x64 directly from official or verified sources. Official Mozilla Firefox Downloads
To ensure you have the latest secure version for a 64-bit system, use these official channels: Firefox for Windows 64-bit Download FaresCD Com Mozilla Firefox x64 zip