ΔE 19.3, loose: different enough that you should pick on purpose. Mars Orange is noticeably darker, more muted than Fire Dragon Bright.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Mars Orange is noticeably darker, more muted than Fire Dragon Bright.
The same difference applies the other way round: Fire Dragon Bright is noticeably lighter, more saturated.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Fire Dragon Bright on the colour wheel See Mars Orange on the colour wheel
All matches: Fire Dragon Bright equivalents · Mars Orange equivalents