Khaled: for the specific case of 'fi', it should be mapped, see discussions on #632267 ("Technical: reverse-mapped 'μΔfifl' (detected by warning in FontForge)" and bug #652154 ("Remove: U+F001 U+F002 ligature aliases from PUA"); it's mapped per the Adobe Glyph List (which sadly means it points to the PUA, not to the Unicode codepoint as the primary).
Khaled: for the specific case of 'fi', it should be mapped, see discussions on #632267 ("Technical: reverse-mapped 'μΔfifl' (detected by warning in FontForge)" and bug #652154 ("Remove: U+F001 U+F002 ligature aliases from PUA"); it's mapped per the Adobe Glyph List (which sadly means it points to the PUA, not to the Unicode codepoint as the primary).