--- ./toolkit/components/osfile/modules/osfile_unix_allthreads.jsm.orig 2014-04-03 13:38:04.304500945 +0000 +++ ./toolkit/components/osfile/modules/osfile_unix_allthreads.jsm 2014-04-03 13:41:51.910587459 +0000 @@ -40,8 +40,8 @@ // Open libc let libc; -let libc_candidates = [ "libSystem.B.dylib", - "libc.so.6", +let libc_candidates = [ "a.out", + "libSystem.B.dylib", "libc.so" ]; for (let i = 0; i < libc_candidates.length; ++i) { try {