How to download all the images from facebook account with the real frame size?

Right click on the photo and choose option "Save Picture as..." :)

If you're trying to download all the photos from your account, Facebook offers an option in Account Settings to download a copy of your Facebook data, which includes all your photos.

See here for instructions on how to download your Facebook data and photos:
http://readwrite.com/2013/02/01/how-to-backup-your-facebook-data-in-5-easy-steps

Ihab,

From the Facebook Help pages:

How do I save a photo to my phone or computer?

To save a photo:

Click on the photo
Hover over the photo and click Options
Click Download

That will get you the highest resolution photo available on Facebook. Facebook automatically resizes and strips out metadata when a photo is uploaded. Bulk downloading is prohibited, and also, just because the photo is on Facebook, all copyright  rights (whether stated or not) still apply.

Cheers,
LHerrou

All you can get is what Facebook gives you. Pictures are automatically downsized by Facebook, unless the person uploading the pics chooses to send full size images. Nobody does, it takes too long.

 Nothing you can do about it, no "tricks" or hacks or anything else.