We downloaded the launcher (in the newest version of Firefox) and expected my son to be able to play the newest version of Minecraft. Each time, the new version will not open. We've tried this multiple times on multiple days. Please help! My son really wants to play the newest version!! This is the message we get in the Development Console:

Launcher 1.0.8 (through bootstrap 4) started on osx...
System.getProperty('os.name') == 'Mac OS X'
System.getProperty('os.version') == '10.6.2'
System.getProperty('os.arch') == 'x86_64'
System.getProperty('java.version') == '1.6.0_15'
System.getProperty('java.vendor') == 'Apple Inc.'
Going to log in with legacy stored username & password...
Loaded 1 profile(s); selected '(Default)'
Trying to log in...
Logging in with access token
Logged in successfully
Delta time to compare resources: 535 ms
Download job 'Resources' skipped as there are no files to download
Job 'Resources' finished successfully
Getting syncinfo for selected version
Queueing library & version downloads
Download job 'Version & Libraries' started (8 threads, 19 files)
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.0/lwjgl-2.9.0.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/net/java/jinput/jinput-platform/2.0.5/jinput-platform-2.0.5-natives-osx.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/google/guava/guava/14.0/guava-14.0.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.0/lwjgl_util-2.9.0.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/org/bouncycastle/bcprov-jdk15on/1.47/bcprov-jdk15on-1.47.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/argo/argo/2.25_fixed/argo-2.25_fixed.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/google/code/gson/gson/2.2.2/gson-2.2.2.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.0/lwjgl-platform-2.9.0-natives-osx.jar for job 'Version & Libraries': Used own copy as it matched etag
Finished downloading /Users/jenniferlittleton/Library/Application Support/minecraft/versions/1.6.1/1.6.1.jar for job 'Version & Libraries': Used own copy as it matched etag
Job 'Version & Libraries' finished successfully
Launching game
Looking for old natives to clean up...
Unpacking natives to /Users/jenniferlittleton/Library/Application Support/minecraft/versions/1.6.1/1.6.1-natives-1373058432595920000
Launching in /Users/jenniferlittleton/Library/Application Support/minecraft
Running /System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/bin/java -Xdock:icon=/Users/jenniferlittleton/Library/Application Support/minecraft/assets/icons/minecraft.icns -Xdock:name=Minecraft -Xmx1G -Djava.library.path=/Users/jenniferlittleton/Library/Application Support/minecraft/versions/1.6.1/1.6.1-natives-1373058432595920000 -cp /Users/jenniferlittleton/Library/Application Support/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.0/lwjgl-2.9.0.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.0/lwjgl_util-2.9.0.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/argo/argo/2.25_fixed/argo-2.25_fixed.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/org/bouncycastle/bcprov-jdk15on/1.47/bcprov-jdk15on-1.47.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/google/guava/guava/14.0/guava-14.0.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/libraries/com/google/code/gson/gson/2.2.2/gson-2.2.2.jar:/Users/jenniferlittleton/Library/Application Support/minecraft/versions/1.6.1/1.6.1.jar net.minecraft.client.main.Main --username Samus4622 --session token:df5d6254d9e94c7689b431be599488b1:7c699c9886324c9eaaeec6642dcd16db --version 1.6.1 --gameDir /Users/jenniferlittleton/Library/Application Support/minecraft --assetsDir /Users/jenniferlittleton/Library/Application Support/minecraft/assets
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- (We'll do this automatically later ;D) ----
Client> Exception in thread "main" java.lang.UnsatisfiedLinkError: /Users/jenniferlittleton/Library/Application Support/minecraft/versions/1.6.1/1.6.1-natives-1373058432595920000/liblwjgl.jnilib: Library not loaded: @rpath/libjawt.dylib Referenced from: /Users/jenniferlittleton/Library/Application Support/minecraft/versions/1.6.1/1.6.1-natives-1373058432595920000/liblwjgl.jnilib Reason: image not found
Client> at java.lang.ClassLoader$NativeLibrary.load(Native Method)
Client> at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1878)
Client> at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1795)
Client> at java.lang.Runtime.loadLibrary0(Runtime.java:823)
Client> at java.lang.System.loadLibrary(System.java:1045)
Client> at org.lwjgl.Sys$1.run(Sys.java:73)
Client> at java.security.AccessController.doPrivileged(Native Method)
Client> at org.lwjgl.Sys.doLoadLibrary(Sys.java:66)
Client> at org.lwjgl.Sys.loadLibrary(Sys.java:95)
Client> at org.lwjgl.Sys.<clinit>(Sys.java:112)
Client> at atn.F(SourceFile:1851)
Client> at net.minecraft.client.main.Main.main(SourceFile:37)
Game ended with bad state (exit code 1)
Deleting /Users/jenniferlittleton/Library/Application Support/minecraft/versions/1.6.1/1.6.1-natives-1373058432595920000