It means that facebook chat line has been opened and is idle after 10 minutes.
it means they're idle (away etc.) like on msn when they have a clock its the same thing for facebook chat except its a moon, however you cant choose to be idle you only have the option to be online or offline and if your online and you havent done anything for a while on facebook chat it automatically puts you to idle seeing how your online but not doing anything, hope that answered your question!
The blue dot means online and the half moon means idle. After a certain amount of time online without activity your online dot will turn into a half moon
no you have to be 562 years old to get this!sorry to dissapiont all you idiots!
don't do anything on facebook for about ten minutes and a little moon will appear to your friend when they look at you on chat. the moon means you haven't done anything on facebook for a while even though you are still online. it also means idle or away
it means that the user put themselves offline
It means that that user is idle. The half moon comes up after the user does not interact with Facebook for a consecutive ten minutes.
it means there idl(away etc..)
The little moon on Facebook signifies that you have activated the "Dark Mode" feature, which changes the background of the app to a darker color scheme. It is an option for users who prefer a darker interface for reduced eye strain or aesthetic purposes.
prosperity
I had sex with a man once.
its represents two different lives which unite to represent a union of two superiorities..like ying and the yang which represents good and bad but a half sun half moon represent how two opposites can reunite...
Not be logged into facebook or not be active for ten minutes then it shows a moon