Hello,
I have not one "'#" in panel.ini, but it does not work in PLESK ONYX Version 17.5.3 Update #24 with DEBIAN 8.9.
Panel Editor Viewer : [facebook] showLikeLink true
Panel Editor :
[promos]
enabled=false
cbm.active=false
cloudFlare.active=false
commTouch.active=false...