NoScript Options closes on its own.
Oh, offhand, not sure just what triggers it, but guessing a permissions change in a different tab/window?
Open NoScript Options
Effect a permissions change in a different tab/windows
Check the NoScript Options "tab" (gone)
NoScript Options closes on its own
NoScript Options closes on its own
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14 Pinball NoScript FlashGot AdblockPlus
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:52.0) Gecko/20100101 Firefox/52.0 SeaMonkey/2.49.5