Not sure if it's directly related to 10.10 (currently have 10.10.3) but almost every single day my MacBook Pro "freezes" up, and I've noticed if i slam down on the esc key for 15-20 seconds it will "unlock" and I can get back to doing whatever it was prior to it freezing.
It's like the entire system locks up, and I can't select another running App from the dock (it doesn't respond), or use the keyboard shortcuts for Force Quit since the menu bar has frozen too.
I've noticed it's happened quite frequently with Safari in use (v8.0.6). Extensions I have installed are Adblock, Ghostery, & Reddit Enhancement Suite.
It's like the entire system locks up, and I can't select another running App from the dock (it doesn't respond), or use the keyboard shortcuts for Force Quit since the menu bar has frozen too.
I've noticed it's happened quite frequently with Safari in use (v8.0.6). Extensions I have installed are Adblock, Ghostery, & Reddit Enhancement Suite.