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JS Blocker is a Safari extension that protects your privacy and keeps you safe on the web by blocking scripts and others from tracking you-similar to NoScript for Firefox.

  • Quickly and easily block advertisers, tracking agencies, and social media networks from monitoring your online activity.
  • Prevent websites from figuring out where you came from.
  • Prevent all scripts on the webpage from being allowed to run.
  • Block frames, AJAX requests, embeds, objects, videos, and hide images.
  • Block many JavaScript annoyances such as alert dialogs getting in the way,

What's New

Version 5.2.1:
  • [New] JSB Sync (beta). Securely sync your settings and rules with other computers. Open Settings > Sync (beta) to learn more
  • [Changed] Updated certificate
  • [Fix] Resolves an issue where settings view may not have loaded
  • [Fix] Resolves an issue where buttons were not clickable in poppies if animations were disabled
  • [Fix] Prevent infinite page


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JS Blocker User Discussion

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3.5 40


Current Version (5.x)


Downloads 54,316
Version Downloads 556
License Free
Date 24 May 2017
Platform Intel 64 / OS X / Intel 32
Price Free