In OS X El Capitan, Safari Reader View file for modifying the CSS is no longer found in Safari application and in /System/Library/PrivateFrameworks/Safari.framework/Versions/A/Resources/.

Where is it located?

Is it locked by System Integration too?

If there is no way to modify, I think in downgrading to OS X Yosemite.

  • If the file is protected by SIP, then you can disable, edit the file, and re-enable SIP. Oct 26, 2015 at 0:27
  • Isn't the file Reader.html inside that folder?
    – Hoshts
    Oct 26, 2015 at 0:37
  • I have already searched all the folders and I didn't find. Oct 26, 2015 at 2:13

1 Answer 1


I tried mdfind -name Reader.html and on my copy of El Capitan it yields the following path:


So it looks like the file has indeed been moved.

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