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Developer Note: AlterVideo has been discontinued. Users are encouraged to move to the excellent 3rd party ClickToPlugin Safari Extension.

AlterVideo Safari Extension forces Adobe Flash and other embedded videos to use the HTML5 Video player when possible.

The goal is to detect video on the page in a generic manner with little support for specific websites.

What's New

Version 1.2:
  • New: "Fullscreen" item added to contextual menu for injected videos
  • New: Improved detection of content (detection of some linked XML config files)
  • New: Automatically reverts content (i.e., Un-AlterVideo) if error occurs during loading
  • New: Inject in frames
  • Update: Can again detect Facebook videos under some circumstances
  • Fixed: Incorrect


  • OS X 10.6 or later
  • Safari 5 or later

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AlterVideo Safari Extension User Discussion

3.4 5


Current Version (1.x)


Downloads 6,167
Version Downloads 1,975
License Free
Date 20 Aug 2013
Platform Intel 64 / OS X / PPC 32 / Intel 32 / PPC 64
Price Free
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