How to enable “Do Not Track” DNT setting for Safari 5.1 on the Mac

“Do Not Track” (DNT) is a privacy setting in web browser that inform web services that you do not want you activities on visited site to be tracked and collected by websites that you do not interact. These info are often collected by third parties for web analytics and marketing purpose. The United States Federal Trade Commission has endorsed DNT as a simple way for users to protect their privacy.

The DNT setting is supported by recent versions of modern browsers such as Firefox 5+, Internet Explorer 9+, and Safari 5.1+. Chrome does not support DNT out of the box but you can enable DNT on Chrome using third-party extension. Internet Explorer 10 will enable DNT by default.

To enable “Do Not Track” setting for Safari 5.1+ on OS X, the first step is to enable the Developer menu. Go to Safari Preferences and click on the Advanced tab. Check the box “Show Develop menu in menu bar” as shown below. This will insert a new menu titled “Developer” under Safari.


Close the Safari Preferences window and select “Developer” from Safari menu. Select “Send Do Not Track HTTP Header” in the menu to enable “Do Not Track” setting in Safari.


Apple released OS X Lion 10.7.4 and Safari 5.1.7


Apple has released 10.7.4 update to OS X Lion that improves the stability, compatibility and security of OS X. This update includes the security fix to the recent password hole for File Vault users. OS X 10.7.4 update includes Safari 5.1.6. Separately, Apple has also released an update to Safari 5.1.7.

To update, select from Apple menu->Software Update. You will be prompted to download and update OS X 10.7.4. Once OS X update is completed and your Mac is rebooted, visit Software Update again to update Safari to the latest v5.1.7.

About the OS X Lion v10.7.4 Update

Upgrade to Safari 5.1.4 for 11% Javascript performance boost


Apple has released the latest update to Safari for Snow Leopard and Lion. One key improvement in this release running on Lion is the 11% Javascript performance boost over the last Safari version. This release also improves responsiveness during network activities and includes a number of fixes. You can update this release from the usual Software Update.

– Improve JavaScript performance up to 11% over Safari 5.1.3*

– Improve responsiveness when typing into the search field after changing network configurations, or with an intermittent network connection

– Address an issue that could cause webpages to flash white when switching between Safari windows- Address issues that prevented printing U.S. Postal Service shipping labels and embedded PDFs

– Preserve links in PDFs saved from webpages

– Fix an issue that could make Flash content appear incomplete after using gesture zooming- Fix an issue that could cause the screen to dim while watching HTML5 video

– Improve stability, compatibility, and startup time when using extensions

– Allow cookies set during regular browsing to be available after using Private Browsing

– Fix an issue that could cause some data to be left behind after pressing the “Remove All Website Data” button


How to transfer a PDF opened on mobile Safari to iBooks

When you open a PDF web link under mobile Safari, the PDF document will be displayed for browsing from within Safari. It might be useful to save the PDF into iBooks for read-later such as when there is lesser Internet connection or to take advantage of the better PDF reader in iBooks.


When the PDF document is fully loaded, tap anywhere on the document to bring out the gray color toolbar bar. On the right end of the toolbar there will be buttons for “Open in iBooks” or “Open In…”.

Tap “Open in iBooks” to save the PDF into iBooks. Safari will save a copy of the PDF into iBooks and switch over to iBooks app. If the PDF size is big, it might take a moment for Safari to switch to iBooks. Tap on the “Open In…” button to choose a different app to manage the PDF document.

List of Apple software updates and new apps

Apple probably just had its greatest software updates in its history. For the past 2 days, Apple software relating to iOS 5 and iCloud are updated, together with few new apps. Here are the list:

  • iOS 5
  • OS X Lion 10.7.2
  • OS X Lion Recovery Update
  • iCloud & website (new)
  • Safari 5.1.1
  • iTunes 10.5
  • Apple TV 4.4
  • Updates to Pages, Numbers, and Keynote for iOS
  • Updates to Remote, iMovie, Find My iPhone for iOS
  • iPhoto 9.2
  • Aperture 3.2
  • iCloud Control Panel for Windows (new)
  • Cards app for iOS (new)
  • iTunes Movie Trailers app for iOS  (new, US only)
  • Find my Friends app for iOS (new)
  • AirPort Setup utility app for iOS (new)
  • XCode 4.2

Safari improvements in OS X Lion

Safari 5.1 is available for both Snow Leopard and Lion, but there are notable improvements in Safari for Lion that makes it a better browsing experience. These Lion only improvements are made possible due to the new features in the underlying OS X Lion, and are good enough reasons for some to upgrade to Lion from Snow Leopard.


Using Safari in full-screen mode is just a pleasure. Each window and its tabs occupies one full screen, and you quickly switch between multiple full-screen by a quick three-fingers swipe. You can have one or more Safari windows in full-screen mode with the rest remain as original size within one desktop.


Multi-touch gestures gets an overwhelming emphasis in Lion with new gestures for switching spaces, access the mission control and launchpad etc. For Safari, new in Lion is the ability to double-tap to zoom and magnify part of a page. This is similar to what you can do on iPhone and iPad. You can also use the two-fingers swipe left-right to navigate forward and back the visited pages. And you switch between full-screen mode and other full-screen spaces by swiping three-fingers left or right.

When you mouse over a word, you can bring out the dictionary and thesaurus of the word by simple tapping on the word with three fingers. This is more convenient than the keyword shortcut Control-Command-d.


The Download window is a popover window for Safari on Lion. You access the download popover by clicking on the download button on the right of the search bar. This is how download window should be.

Besides all these changes from the Snow Leopard version, we notice Safari on Lion uses less memory. We have not conduct any actual test, but based on our normal browsing pattern, Safari for Snow Leopard consistently hits over 800MB to over 1GB of memory usage. In Lion, the memory is hovering in a healthier 500MB-700MB range. This is not a conclusive result, as memory usage depends also on how many and what type of plugins you are running within Safari.

We have to conclude that Safari is the best browser right now for Lion with its full-screen mode, multi-touch gestures support and features such as Reading List and Reader.

Integrates location bar and search bar into one with Safari Omnibar


A guy by the name of Oliver Poitrey has created a free and open source Safari plug-in that merges the location bar and search bar into a single what he called an Omnibar. The Omnibar mimics the same bar as found in Chrome browser.

Just type on the bar web address or search term, Omnibar is able to detect if it is a URL or launch the search engine for the search term. You can define the search engine to use by holding Option key while clicking on the bar. Typing “?” to begin your input will launch a search. Typing “w” to begin your input will search for Wikipedia.

Safari Omnibar

Apple releases Safari 5.1 for Snow Leopard


Apple has released Safari 5.1 for Mac OS X Snow Leopard, bringing the improvement of Safari on Lion over to Snow Leopard such as Reading List, new privacy pane preference and new process architecture. Several notable new features in Safari 5.1 are however Lion specific and are not available when running under Snow Leopard: Multi-touch Gestures, Resume, Full Screen Browsing, Sandboxing, Downloads Popover, better HTML Canvas graphics etc.

Safari homepage