Before you can upload pictures on Facebook, you have to know where they are located on your computer (see tip on Files and Folders). Most of the time, by default, pictures are stored in a Picture folder on your hard drive. Some cameras will unload the pictures in a folder within the pictures folder and might even create further sub-folders using the date as the naming format. The important thing is to know where the pictures that you want to upload are located.
The instructions that follow will be using the FireFox browser.
First, on your Facebook page, select photo, then Upload a photo
Then click Browse to go to the folder where your pictures are stored on your computer.
Then select the photo. Notice the path at the top of the page (see photo below) It directs the computer to the folder, sub-folder, and sub-sub-folder that the pictures are located in. It is like a map. Notice the folder names on the left hand side of the screen and the files (pictures) in the right hand area? Just select the picture you want to upload. You can also hold down your CTRL key and select multiple photos and upload all at the same time.