i installed firefox 4 and downloaded firefox 3.6 because molybdenum is not available for ff4!

firefox 3.6 is located /usr/local/share/firefox-36/firefox (only root can run ff3.6).

if the user "peter" goes to /usr/local/share/firefox-36/ and run firefox, firefox 4 startsup instead of firefox 3.6!

Is there any workaround to start ff36 as "peter"?

• EDIT:

If i use --debug this get prited to console

peter@muhahaha:/usr/local/share/firefox-36$ ./firefox --debug

./run-mozilla.sh -g ./firefox-bin

MOZILLA_FIVE_HOME=.

  LD_LIBRARY_PATH=.:./plugins:.

DISPLAY=:0.0

DYLD_LIBRARY_PATH=.:.

     LIBRARY_PATH=.:./components:.

       SHLIB_PATH=.:.

          LIBPATH=.:.

       ADDON_PATH=.

      MOZ_PROGRAM=./firefox-bin

      MOZ_TOOLKIT=

        moz_debug=1

     moz_debugger=

/usr/bin/gdb --args ./firefox-bin

GNU gdb (Ubuntu/Linaro 7.2-1ubuntu11) 7.2

Copyright (C) 2010 Free Software Foundation, Inc.

License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law.  Type "show copying"

and "show warranty" for details.

This GDB was configured as "x86_64-linux-gnu".

For bug reporting instructions, please see:

<http://www.gnu.org/software/gdb/bugs/>...

Reading symbols from /usr/local/share/firefox-36/firefox-bin...(no debugging symbols     found)...done.

(gdb) 

• Update:
  A few days later the versions switched: i can start ff4 only as root, users always start ff36 now!