# one sec | Website Blocker, Focus, Screen Time

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

Canonical page: [https://chrome-stats.com/d/one-sec](https://chrome-stats.com/d/one-sec)

## Overview

- **ID:** `one-sec`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** riedel.wtf GmbH
- **Category:** other
- **Daily users:** 2,184
- **Weekly downloads:** 105
- **Rating:** 4.81 / 5 (154 ratings)
- **Version:** 1.3.2
- **Last updated:** 2026-02-28
- **First published:** 2022-10-14
- **Size:** 5.58 MB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/one-sec/)
- **Website:** [https://one-sec.app/support](https://one-sec.app/support)

## Description

**one sec** is a privacy-focused Chrome extension designed to help you regain control over your digital habits by forcing a mindful pause whenever you open distracting websites such as Reddit, YouTube, or Twitter. Unlike traditional blockers, it tackles unconscious social media use by prompting you to take a deep breath, promoting awareness and reducing time spent on these platforms.

By interrupting habitual scrolling with a simple, effective pause, **one sec** encourages long-term changes to your focus habits. It protects your privacy with zero tracking, no accounts, and offline data storage—ensuring your information stays secure. Available also for Firefox, iPhone, iPad, and Android, **one sec** provides a comprehensive solution to manage screen time and cultivate mindfulness online.

## Rankings

- #2,069 — Overall
- #325 — Other extensions
- #3 — screen time tracker
- #13 — focus
- #17 — screen time
- #17 — website blocker

## Permissions and access

### Permissions

- `storage`
- `tabs`
- `alarms`

### Host permissions

- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

Reviewers repeatedly cite one sec as an effective tool for cutting time on distractions, especially YouTube, and appreciate its cross-device usability (phone and computer) and ability to pair with LeechBlock. The blocking mechanism with a pause-and-breathe flow and its clean, intuitive UI are praised for a calm focus aid without slowing browsing. The main caveat across multiple reviews is cost: many features are paid, with some users suggesting free alternatives or desiring more customization.

### Pros

- Highly effective at reducing time spent on distractions (notably YouTube), helping users reclaim their time.
- Works across devices (phone and computer) and can be used with LeechBlock for stronger blocking.
- Smooth, non-intrusive performance that doesn’t slow down pages or interfere with browsing.
- Elegant UI with a pause-and-breathe blocking approach.
- Intuitive and easy to use.

### Cons

- Paid features and overall cost may deter some users; several reviews compare it unfavorably to free or cheaper options like LeechBlock.

## Similar extensions and apps

- [ZenBlock: Mindful Web Blocker & Focus Timer](https://chrome-stats.com/d/zenblock-mindful-web-blocker) — 4 users, 5.00 / 5
- [ZeroDistraction](https://chrome-stats.com/d/zerodistraction) — 73 users, 5.00 / 5
- [Distraction Block](https://chrome-stats.com/d/distraction-block) — 21 users, 4.00 / 5
- [Keep Me Focus](https://chrome-stats.com/d/keep-me-focus) — 9 users
- [DigitalZen – Smart Focus & Website Blocker](https://chrome-stats.com/d/digitalzen) — 544 users, 4.84 / 5
- [StayFocused](https://chrome-stats.com/d/stayfocused) — 283 users, 3.00 / 5
- [Focus Lock](https://chrome-stats.com/d/focus-lock) — 24 users, 5.00 / 5
- [SiteBlocker: Easy Blocking and Scheduling](https://chrome-stats.com/d/siteblocker-2) — 79 users
- [Monarch's Distraction Blocker](https://chrome-stats.com/d/monarch-s-distraction-blocker) — 1 users
- [FocusGuard](https://chrome-stats.com/d/focusguard) — 470 users, 4.88 / 5
- [SocialFocus: Hide Distractions](https://chrome-stats.com/d/socialfocus) — 15,494 users, 4.32 / 5
- [FocusSurfing - Block Distracting Websites](https://chrome-stats.com/d/focussurfing) — 133 users, 5.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/one-sec)