Update Question

Under Windows XP recently I updated Firefox to v29.
After adding a good dark theme to it, I love the new Firefox.
So, I was wondering, is there a way to update Firefox from what is currently installed (v24.4.0)
to v29? I really would love that with dark them and this way it would go better with theme I use for system as well.
I am SERIOUSLY hoping to be able to update it to v29.
Thanks.
After adding a good dark theme to it, I love the new Firefox.

So, I was wondering, is there a way to update Firefox from what is currently installed (v24.4.0)

to v29? I really would love that with dark them and this way it would go better with theme I use for system as well.
I am SERIOUSLY hoping to be able to update it to v29.


Thanks.