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threshold by Samuele Littek-Rolt

A simple website blocker I made in an afternoon, originally meant as a ScreenZen for Firefox, makes you take a mindful pause before distracting sites, with a timed session and automatic re-block.

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About this extension
Threshold is a Firefox extension that intercepts distracting sites with a countdown pause before granting access. Sessions auto-expire and re-block the site. Configure pause length, session duration, and daily opening limits from the popup.
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Permissions and data

Required permissions:

  • Access browser tabs
  • Access browser activity during navigation
  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
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More information
Version
1.1.0
Size
18.52 KB
Last updated
20 hours ago (Mar 12, 2026)
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