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firefox 18.0.1 disabled retina support


Retina support was working fine on my 15 inch MacBook Pro in Firefox 18.0.0. Now it is no longer working with Firefox 18.0.1 (fonts look fuzzy again)

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Installed Plug-ins

  • Displays Java applet content, or a placeholder if Java is not installed.
  • Shockwave Flash 11.5 r502
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.


  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:18.0) Gecko/20100101 Firefox/18.0

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  • Top 10 Contributor
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2043 solutions 8894 answers

Helpful Reply

hello, developers took the decision to switch off hidpi support for dual-display systems again per default until an underlying issue is fixed in firefox 20...

however you can manually enable it again. enter about:config into the firefox location bar (confirm the info message in case it shows up) & search for the preference named gfx.hidpi.enabled. double-click it and change its value to 2. however there will then be the unadressed bug that menus might show up on the wrong monitor (until fixed later).