List ESR or quantum

ffvers.py

#!/usr/bin/env python
#
# List Quantum migrated and non-migrated (ESR) firefox profiles.
# Assumes the preference 'extensions.lastAppVersion' kinda tells firefox version last used with a profile.
# Use at your own risk.
# 

import os, sys, re

ff_path=os.environ['HOME']+'/.mozilla/firefox/'
ff_profiles = {}

try:
    c_prof_n = ''
    ff_prof_ini=map(lambda x: x[:-1], open(ff_path+'profiles.ini').readlines())
    for n in ff_prof_ini:
        pl=n.split('=')
        if (pl[0]).lower() == 'name':
            c_prof = pl[1]
        elif (pl[0]).lower() == 'path':
            ff_profiles[c_prof] = '='.join(pl[1:])
        else:
            None
except IOError, e:
    print e

def is_quantum(d):
    m = re.compile('(user_pref)\((.+)\);')
    try:
        prefsfile = open(d + '/prefs.js')
        prefsl = dict(map(lambda ar: (ar[0][1:-1], ','.join(ar[1:]).strip()), map(lambda (x,y): y.split(','), map(lambda x: x.groups(), filter(None, map(m.search, prefsfile.readlines()))))))
        prefsfile.close()
        return int(prefsl['extensions.lastAppVersion'][1:-1].split('.')[0]) >= 57
    except IOError, e:
        return None

for (n, d) in map(lambda (x,y): (x, ff_path+y), ff_profiles.items()):
    if is_quantum(d):
        print "\033[1;32m"+n+' '*(32-len(n))+"Quantum"+"\033[0m"
    else:
        print n+' '*(32-len(n))+"ESR"