Stay Focused - More suitable with Google Chrome, this service enables you ensure you do not waste precious time on updating Facebook status or chatting with people.
Time Sink - Time Sink helps you track how you spend your time on your Mac.
FocusMe - With so much access to information and distractions on the internet, it's easy to get sidetracked.
ChatterBlocker - ChatterBlocker is the prime software to reduce the nearby conversation’s distraction that allows you to focus on your work.
Cold Turkey - Cold Turkey is a free productivity program that you can use to temporarily block distractions so that you can get your work done!
Strict Workflow - Enforces the Pomodoro time management technique by blocking distracting sites