The firefox binary in Tor Browser on OSX is not PIE
otool -hv
says that the firefox binary from Tor Browser on OSX is not PIE:
$ otool -hv firefox
firefox:
Mach header
magic cputype cpusubtype caps filetype ncmds sizeofcmds flags
MH_MAGIC_64 X86_64 ALL LIB64 EXECUTE 22 2752 NOUNDEFS DYLDLINK TWOLEVEL BINDS_TO_WEAK
While on the firefox binary from Mozilla, it says this:
$ otool -hv /Volumes/Firefox/Firefox.app/Contents/MacOS/firefox
/Volumes/Firefox/Firefox.app/Contents/MacOS/firefox:
Mach header
magic cputype cpusubtype caps filetype ncmds sizeofcmds flags
MH_MAGIC_64 X86_64 ALL LIB64 EXECUTE 22 2744 NOUNDEFS DYLDLINK TWOLEVEL BINDS_TO_WEAK PIE