If you want a quicker way to access Facebook on your Series 60 5th Edition phone then try this official client.
The Facebook app lets you follow what's happening on your network, and share stuff with the World just as you would do on the Facebook site itself. The difference here is that everything's been packaged into a neat, touch-friendly user interface. Tabs along the bottom of the screen provide short cuts to your home page, profile page, friends, photos and inbox.
The home screen is well laid-out, displaying your Facebook news feed by default, then giving you one-click access to your events, messages, pokes, and friend requests, all from the same screen. I was also fond of the Photos tab, which gives you fast access to your albums, then allows you to flick through your pictures with ease. There's even a button that lets you take a picture on your phone and upload it directly.
This official Facebook client integrates quite nicely with your phone. For instance, it automatically adds events to your phone calendar when you accept them, and it can import Facebook contacts into your phone's contacts.
The main problem with the client is that it's not that quick, and it can often take a while to load data, especially if there's lots of activity on your Facebook.
Overall though, the official Facebook app makes it much easier to access the social network on your Symbian device.