[CentOS] Run Now no longer works in Messages Filters of Thunderbird 38.6

Hi all,


Since the last update of Thunderbird to 38.6, the button 'Run Now' of 
the 'Mail Filters' option is no longer effective and appears always 
grayed in my CentOS 7...
Anybody has the same behavior ?

-- 
(°-	Bernard Lheureux
//\     Linux System Administrator
v_/_    MailTo:bernard at lheureux.be