20-20-20 Rule
Prevent eye strain with the 20-20-20 Rule reminder.
20-20-20 Rule: Prevent Eye Strain
20-20-20 Rule is a Firefox add-on that helps prevent eye strain caused by excessive screen time. It reminds you to look away every 20 minutes and focus on an object 20 feet away for 20 seconds, following the recommended eye care rule.
Add-on stats
Weekly download count: 3
Firefox on Android: No
Risk impact: Low risk impact 
Risk likelihood:
Manifest version: 2
Permissions:
- alarms
- notifications
Size: 27.57K
Email: sh*****@gmail.com
Ranking
Other platforms
Not available on Chrome
Not available on Android
Not available on Edge
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Add-on summary
An eye care reminder. Looking at screens too much can lead to eye strain. If you find yourself gazing at screens all day, your eye doctor may have mentioned this rule to you. Every 20 minutes spent using a screen; you should try to look away at something that is 20 feet away from you for a total of 20 seconds. The 20-20-20 rule reminder will help by reminding you to look away every 20 minutes at an object that is about 20 feet away for a full 20 seconds.
User reviews
by Rango, 2024-10-15
eye saving tool. you can add a timer for 20 seconds. that I have to look outside.
by Firefox user 18139722, 2024-06-02
Add-on safety
Risk impact
20-20-20 Rule requires very minimum permissions.
Risk likelihood
20-20-20 Rule has earned a fairly good reputation and likely can be trusted.
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