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Preview of one sec | Website Blocker, Focus, Screen Time

one sec | Website Blocker, Focus, Screen Time by riedel.wtf GmbH

“one sec” forces you to take a deep breath and pause whenever you open one of the configured websites (Reddit, YouTube, Twitter, …).

4.8 (118 reviews)4.8 (118 reviews)
1,472 Users1,472 Users
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Stop mindless browsing with the one sec Firefox extension.
It has saved more than 100000 years from scrolling already.one sec has received well over 70000 5-star ratings across all platforms. But it’s not only that: together with the Max-Planck-Institute we have conducted a research study that showed that one sec reduces social media usage by 57% on average: doi.org/10.1073/pnas.2213114120Customize every aspect of the intervention.Doom scrolling protection.You can use one sec in your web browser, on iPhone, iPad, and Android.
About this extension
one sec forces you to take a deep breath whenever you open social media or other distracting websites. It’s as simple as effective: You will reduce your social media usage just by becoming aware of it. one sec is the focus app that tackles the problem of unconscious social media use at its root. It is designed to change your habits on a long-term basis.

You just wanted to check that one message – and ended up scrolling for 30 minutes on Instagram? Social media companies use psychological traps to keep you hooked and spend as much time on their apps as possible. Time that could be spent so much better – with your family and friends, getting work done or for your hobbies and wellbeing.

Many apps and tools block social media for a limited amount of time to help you focus. This might increase your productivity for the moment, but the real problem – your habitual urge to check apps and websites to get that dopamine boost – stays.

The one sec Firefox Extension is designed from ground up to keep your information private and secure. There are no accounts, no login, no tracking, no profiling. All data is stored offline, on-device, and only you can access it. I make money selling apps and subscriptions, not your data!

one sec is also available for iPhone, iPad, and Android Devices to block native apps and websites. More info on my website.
Rated 4.8 by 118 reviewers
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Permissions and dataLearn more

Required permissions:

  • Access browser tabs
  • Access your data for all websites

Optional permissions:

  • Access your data for all websites
More information
Add-on Links
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Version
1.1.9
Size
4.18 MB
Last updated
a month ago (Jul 9, 2025)
Related Categories
  • Other
License
All Rights Reserved
Version History
  • See all versions
Tags
  • content blocker
  • facebook
  • social media
  • twitter
  • whatsapp
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Release notes for 1.1.9
  • Bug fixes.
  • Adds support for additional languages.
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