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!
Mozilla Facebook Container - Take control of all your Facebook data
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.
Ghostery - Privacy tool for transparency and control
Freedom.to - Freedom is a productivity hack that lets you block apps, websites or the entire Internet on iPhones, iPads, Windows and Mac computers.
1Blocker - 1Blocker is a content blocking software that you can rely on to save time and money. Unlike its competitors who use JavaScript to block ads after they have been download, 1Blocker does the contrary. Read more about 1Blocker.