Conventional wisdom would suggest not. FD uses a shorter registration distance than EF.
So, to focus to infinity, an FD-to-EF adapter requires an optical element (i.e. a lens) which compromises the optical quality of the FD lens.
If you're doing macro or close focus work, then adapters without an optical element will retain the qualities of your FD glass, at the expense of not being able to focus to infinity.
There are other, better options which have a longer registration distance than FD, for non-native mounts to use on EOS cameras, especially for landscape.