I am having problems with Facebook running slow, very slow. Also, sometimes my calendar and messages hang up. I am using 10.9.2 and this is on my MacBook Pro. Here are some more facts about my laptop. Any help is appreciated. I have shutdown my laptop several times, when this happens. It happens with Safari and firefox.
Model Name: MacBook Pro
Model Identifier: MacBookPro9,1
Processor Name: Intel Core i7
Processor Speed: 2.6 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Memory: 8 GB
Boot ROM Version: MBP91.00D3.B09
SMC Version (system): 2.1f175
Hardware UUID: F11AEBE3-0853-5040-986E-F2D6A39212F0
Sudden Motion Sensor:
State: Enabled
Model Name: MacBook Pro
Model Identifier: MacBookPro9,1
Processor Name: Intel Core i7
Processor Speed: 2.6 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Memory: 8 GB
Boot ROM Version: MBP91.00D3.B09
SMC Version (system): 2.1f175
Hardware UUID: F11AEBE3-0853-5040-986E-F2D6A39212F0
Sudden Motion Sensor:
State: Enabled