Can I transfer an Application and its data to a different Mac I was given a MacBook Air to use as a laptop for school in the sixth grade. Now I am graduating and heading off to high school, so I need to turn my laptop in for good. Now I have had this laptop for a long time, and customized everything just the way I like it. For example in my browser, Opera, I have added many extensions, userscripts, and customized it just the way I like it. Now I would like to transfer this browser along with all of its data, to my personal MacBook Pro. 
Is there an easy way to do this? I believe that the data is stored under: 


  User > Library > Application Support > "Application's Name" / "com.Application's Website"


Though I am not positive of this, but if the data actually is in there then I could just copy the contents of it and put it into the same file on my MacBook Pro. I would rather not do this unless I have to, in-case I mess something up.

I feel like there should be an easier way of doing this. Any help is appreciated, Thanks!
You can use the built-in Migration Assistant to move your settings, apps, and documents to the new computer.


  Move your content to a new Mac Use Migration Assistant to copy all of
  your documents, apps, user accounts, and settings to a new Mac from
  another computer.


Here's a document about how to use it (although it's pretty simple and it looks like you're an experienced Mac user).  I can't say for sure that all your customizations will copy over but it's the easiest, most complete, and free option available.