Edited by Mick Ed from the Tab provided by Paco Valiant. Paco did an excellent job
Tabbing the Bass for the entire FF album so check it out 

intro: (00:43)
G-------------3333-|
D---------1111-----|
A-33333333---------|x4
E------------------|

Verse: (00:56)
G----------------------|
D---------111/8888/3---|Repeat until the change
A-33333333-------------|
E----------------------|

???? at (01:47)

G-------11-12-------11-12-------11-12-------11-12-----|
D-10-10-------10-10-------10-10-------10-10-----------|
A-----------------------------------------------------|
E-----------------------------------------------------|

G-----------------------------------------------------|
D-------12-13-------12-13-------12-13------12-13------|
A-11-11-------11-11-------11-11-------11-11-----------|
E-----------------------------------------------------|

G-----------------------------------------------------|
D-------14-15-------14-15-------14-15------14-15------|
A-13-13-------13-13-------13-13-------13-13-----------|
E-----------------------------------------------------|

G-----------------------------------------------------|
D-------14-15-------14-15-------14-15------14-15------|
A-13-13-------13-13-------13-13-------13-13-----------|
E-----------------------------------------------------|

G-------11-12-------11-12-------11-12-------11-12-----|
D-10-10-------10-10-------10-10-------10-10-----------|
A-----------------------------------------------------|
E-----------------------------------------------------|

G-----------------------------------------------------|
D-------12-13-------12-13-------12-13------12-13------|
A-11-11-------11-11-------11-11-------11-11-----------|
E-----------------------------------------------------|


G-----------------------------------------------------|
D-------14-15-------14-15-------14-15------14-15------|
A-13-13-------13-13-------13-13-------13-13-----------|
E-----------------------------------------------------|

G-----------------------------------------------------|
D-------14-15-------14-15-------14-15------14-15------|
A-13-13-------13-13-------13-13-------13-13------10~~-|
E-----------------------------------------------------|

¿?? At (02:17)
G----------------------------------|
D----------------------------------|
A----------------------------------|
E-88888888888888884444444466666666-|

(02:23)Return to the verse.

In (02:54)
G----------------------|
D-33333333/5555/66/88--|
A----------------------|
E----------------------|

In (02:57) again the verse and when the guitars does something like a pre chorus
in(03:10) you dont make anything
And in(03:22) you return to the verse and end.