You need the original game (floppy version patched to 1.06) to in order to use JJFFE.    
Main indicates a mirror of the download hosted on this site. 
Alternate indicates a download on the original hosting site. 

This binary requires glibc 2.1.x, X11R6 (libraries), SVGAlib and probably a lot of patience.

If it complains about missing libraries, run: ldd ./ffe.exe
This will tell you what specific libraries are used and which are not found.

Unpack it somewhere and edit allegro.cfg to fit your system.
Personally I have set up the mouse as a gpm repeater, which works great.
If you already have gpm running, you need to edit the run script,
since it starts and stops gpm on its own.

I dont know if it will run under X, I wouldnt try it tho. Its bloody slow.
Even if you have X running, use a virtual console and SVGAlib.

If you install the cabin bitmaps, rename them "Cabin#.bmp" --> "cabin#.bmp".
Linux is case sensitive on filenames, remember? =]

If you do not like my version of the crosshairs (direction and aim),
go into .../pix and do;
mv pix98.bin.orig pix98.bin
mv pix99.bin.orig pix99.bin

If you want to make your own bitmaps, you can use the sources in .../source
to convert between pix*.bin and pix*.bmp

If all is well, do;
./run

It should start up fine if your settings in allegro.cfg are correct.

Proton's linux page is at: http://www.energymech.net/users/proton/ffe/linux.html [offline]

Disclaimer

JJFFE is a hacked and reverse-engineered version of a commercial game, therefore it's probably illegal to download it even if you own the original legally. It will be removed rapidly if anyone complains. FFE has recently been re-released as shareware by Frontier Developments as part of the Elite Club.

If you have problems with JJFFE, you should first check that you've installed it correctly and read the FAQ. If that doesn't solve your problem, you can email me at john@jaj22.demon.co.uk.

Alternatively you can find me on the newsgroup alt.fan.elite, the web forum EBBS or on the IRC channel #gamedev on irc.starchat.net.