Your phone may have its own software for synchronizing to a PC. For example, Sony Xperia phones, HTC phones, and Samsung phones either come with software or you can download software for them from the manufacturer's website. However, it might be simpler to connect a USB cable from your PC to the phone, and when prompted on your phone, choose the external storage connection type. Then you can access your phone's storage just like a USB flash drive or external hard drive. The tricky part probably is figuring out what folder stores your pictures... For general (non-Firefox-related) assistance with specific models of smartphone and tablets, could I suggest this site: http://forums.androidcentral.com/