macosmessagesnotifications
In Mountain Lion's Notification Centre, I don't like having a notification pop up with the contents of an iMessage text I just got, but I do want to have notifications about it happening.
Is there a way to make it just show a notification without the content, similar to the iOS setting to not "Show preview" that hides the text content from the iOS notification center?
New tweets in Twitter can't be added to the notification centre, thankfully. It will only notify you in the notification centre if your mentioned or receive a direct message.
The settings for the Twitter notifications can be found in Settings -> Notification Centre
Also make sure you have your Twitter set up correctly under Settings -> Twitter after installing the Twitter app.
I'm a Mac OS X developer and I just finished adding Notification Center support to my app. For what it's worth, here's what I found out:
I have no idea if this is a bug in Safari or Notification Center, or both. However, I am fairly confident that there is nothing you can do about the second issue (there might be a hidden defaults setting for the first one, but I haven't heard of it). I did check the WebKit API Specification, to make sure it's not something that the individual websites are doing, and you can rule out websites from your suspect's list, because they do not have any control over the notifications.
I guess we'll have to wait and see if Apple will address this in its next bug fix release (10.9). However, by the looks of it, not showing notifications when the app is frontmost is a "feature", so don't get your hopes up.
Best Answer
There is an option to "show preview" that can be ticked off in the settings of the Messages app: Go to Settings> Notification> Messaging.
Stated another way:
1) Go to Settings = Click on the GEAR icon (System Preferences)
2) The top-most section of System Preferences on My Mac is labeled "Personal" at the far right is "Notifications" (a black square with a red dot in the center)
3) Click that square and the dialogue window will show a list on the left which should include "Messages" with a sub title "Badges and Sounds"
4) Click that item in the list on the left and you will notice on the right side, toward the top it has three options (the default is Banners). Click the item to the left of Banners (should be None).
Now you can press CMD+Q on your keyboard to close System Prefs and the alerts will stop popping up in the upper right of your screen (you may want to test it)
This was an issue for me because I was allowing one of my staff to use my Macbook for some training and all my personal iMessages kept popping up in front of her - NOT COOL. This ended that problem