Need to take a break? The Take A Break add-on for Firefox will help remind you when it is time to take a break when you are browsing around the Web. For people like me that work from home – this is a handy little tool to have to remind me when I need to get up and stretch my legs.
Here is a little more information about the extension from the developers:
Addicted to the Web? Don’t compromise your health! Continuously staring at the computer can cause headaches, blurred vision, neck pain, fatigue, dry eyes. “Take A Break” extension tries to help you avoid or reduce these problems. It reminds you when to take a break while you are surfing the Web.
When you are using it, a little icon on the status bar will be flashing every 15 minutes to remind you to take a short break. You should sit back and close your eyes, or look outside the window for a while. You can adjust the timers according to your own needs.
Want to give it a shot? You can download the Take A Break add-on for Firefox from the Firefox Add-ons website.