Extension Tracker

Once - Block distracting websites

197 users Rated 4.54 from 13 ratings Last updated 24 Apr 2026

By Once Live in the Chrome Web Store cmkicojchpmgdakmdjfhjjibbfmfplep Last checked 26 Sep 2026, 23:18 UTC

The listing

What the Chrome Web Store shows, as of the last check

Block distracting websites and limit visits to once per hour.Summary from the listing
Developer
Once
Trader status
Not declared a trader under EU law
Category
Productivity › Tools
First published
2 Jan 2021
Last updated
24 Apr 2026
Version
0.3.0
Size
157 KiB
Minimum Chrome
102
Languages
1 language

English (United States)

Website
onceforchrome.com
Open in the Chrome Web Store ↗ View the code or download the CRX in CRX Viewer ↗
Users over time As shown on the Chrome Web Store

Tracking began on 26 Sep 2026. The chart appears after the second check.

Show the numbers
CheckedUsersRatingRatings
2026-09-261974.5413
Users, 7 days
–
needs a week of history
Users, 30 days
–
needs a month of history
Rank
#50,361
by users, of 264,703 extensions
In its category
#14,909
of 103,498 in Tools

What changed

Every change found on a check, newest first

No changes found since tracking began on 26 Sep 2026.

What it can access

From the extension's manifest, in plain language

Sites
  • https://news.ycombinator.com/*news.ycombinator.com
Sites where it runs scripts
  • https://news.ycombinator.com/news.ycombinator.com
  • https://techmeme.com/techmeme.com
  • https://www.amazon.com/www.amazon.com
  • https://www.bbc.com/www.bbc.com
  • https://www.buzzfeed.com/www.buzzfeed.com
  • https://www.cnbc.com/www.cnbc.com
  • https://www.cnn.com/www.cnn.com
  • https://www.ebay.com/www.ebay.com
  • https://www.espn.com/www.espn.com
  • https://www.facebook.com/www.facebook.com
  • https://www.fandom.com/www.fandom.com
  • https://www.foxnews.com/www.foxnews.com
  • https://www.instagram.com/www.instagram.com
  • https://www.linkedin.com/www.linkedin.com
  • https://www.linkedin.com/feed/www.linkedin.com
  • https://www.msn.com/www.msn.com
  • https://www.nytimes.com/www.nytimes.com
  • https://www.pinterest.com/www.pinterest.com
  • https://www.quora.com/www.quora.com
  • https://www.reddit.com/www.reddit.com
  • https://www.tiktok.com/www.tiktok.com
  • https://www.walmart.com/www.walmart.com
  • https://www.yahoo.com/www.yahoo.com
  • https://www.youtube.com/www.youtube.com
  • https://x.com/x.com
  • https://x.com/homex.com
Browser features
  • activeTabThe tab you're on, only after you click the extension
  • storageSave settings and data in your browser
  • tabsRead the addresses and titles of your tabs

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 26 Sep 2026, 23:18 UTC; next check around 7 Oct 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Once - Block distracting websites” (cmkicojchpmgdakmdjfhjjibbfmfplep). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/cmkicojchpmgdakmdjfhjjibbfmfplep. Accessed 2026-09-28.
BibTeX
@misc{extensiontracker_cmkicojchpmgdakmdjfhjjibbfmfplep,
  title   = {Once - Block distracting websites (cmkicojchpmgdakmdjfhjjibbfmfplep)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/cmkicojchpmgdakmdjfhjjibbfmfplep},
  urldate = {2026-09-28}
}

The data is free to reuse under CC BY 4.0.

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