I know that you must set
perf("javascript.options.jit.content", false);
perf("javascript.options.jit.chrome", false);
in about:config
because the jit emits armv7 instructions
about 3 months i was successful running iceweasel (10?) on a sheevaplug
with these settings. I also remember that 3.5 worked. Both were _very_
slow.
--
-Shawn Landden