If you want to download it while using another OS you can actually use their download link and just edit the last part of the URL string with the destination OS

If you want to download it while using another OS you can actually use their download link and just edit the last part of the URL string with the destination OS name.[1] I've actually tried from windows using the 'mac' parameter and it actually downloads .dmg extension, I don't think there's a linux version at the moment. [1]: http://www.opera.com/computer/thanks?ni=stable_neon&os=mac http://www.opera.com/computer/thanks?ni=stable_neon&os=mac