Ui Changes

Some people don’t like to see transparency in the menubar this setting will disable the transparency.

defaults write NSGlobalDomain AppleEnableMenuBarTransparency -bool false

Always show scrollbars

One change that annoyed a lot of people with OS X lion was that Apple decided to hide the scrollbar by default. While this does create a cleaner looking window many people use the scrollbars as a way to determine how far into a document they were. This tweak will turn the scrollbars on all the time.

defaults write NSGlobalDomain AppleShowScrollBars -string “Always”

Disable smooth scrolling

defaults write NSGlobalDomain NSScrollAnimationEnabled -bool false

Disable opening and closing window animations

defaults write NSGlobalDomain NSAutomaticWindowAnimationsEnabled -bool false

Increase window resize speed for Cocoa applications

defaults write NSGlobalDomain NSWindowResizeTime -float 0.001

Expand save panel by default

defaults write NSGlobalDomain NSNavPanelExpandedStateForSaveMode -bool true

Expand print panel by default

defaults write NSGlobalDomain PMPrintingExpandedStateForPrint -bool true

Save to disk (not to iCloud) by default

defaults write NSGlobalDomain NSDocumentSaveNewDocumentsToCloud -bool false

Automatically quit printer app once the print jobs complete

defaults write com.apple.print.PrintingPrefs “Quit When Finished” -bool true

Disable the “Are you sure you want to open this application?” dialog

defaults write com.apple.LaunchServices LSQuarantine -bool false

Display ASCII control characters using caret notation in standard text views

defaults write NSGlobalDomain NSTextShowsControlCharacters -bool true

Disable Resume system-wide

defaults write NSGlobalDomain NSQuitAlwaysKeepsWindows -bool false

Disable automatic termination of inactive apps

defaults write NSGlobalDomain NSDisableAutomaticTermination -bool true

Disable the crash reporter

defaults write com.apple.CrashReporter DialogType -string “none”

Set Help Viewer windows to non-floating mode

defaults write com.apple.helpviewer DevMode -bool true

Reveal IP address, hostname, OS version, etc. when clicking the clock in the login window

defaults write /Library/Preferences/com.apple.loginwindow AdminHostInfo HostName

Check for software updates daily, not just once per week

defaults write com.apple.SoftwareUpdate ScheduleFrequency -int 1

Mouse Behavior

Trackpad: enable tap to click for this user and for the login screen

defaults write com.apple.driver.AppleBluetoothMultitouch.trackpad Clicking -bool true
defaults -currentHost write NSGlobalDomain com.apple.mouse.tapBehavior -int 1
defaults write NSGlobalDomain com.apple.mouse.tapBehavior -int 1

Trackpad: map bottom right corner to right-click

defaults write com.apple.driver.AppleBluetoothMultitouch.trackpad TrackpadCornerSecondaryClick -int 2
defaults write com.apple.driver.AppleBluetoothMultitouch.trackpad TrackpadRightClick -bool true
defaults -currentHost write NSGlobalDomain com.apple.trackpad.trackpadCornerClickBehavior -int 1
defaults -currentHost write NSGlobalDomain com.apple.trackpad.enableSecondaryClick -bool true

Trackpad: swipe between pages with three fingers

defaults write NSGlobalDomain AppleEnableSwipeNavigateWithScrolls -bool true
defaults -currentHost write NSGlobalDomain com.apple.trackpad.threeFingerHorizSwipeGesture -int 1
defaults write com.apple.driver.AppleBluetoothMultitouch.trackpad TrackpadThreeFingerHorizSwipeGesture -int 1

Disable “natural” (Lion-style) scrolling

defaults write NSGlobalDomain com.apple.swipescrolldirection -bool false

Increase sound quality for Bluetooth headphones/headsets

defaults write com.apple.BluetoothAudioAgent “Apple Bitpool Min (editable)” -int 40

Enable full keyboard access for all controls (e.g. enable Tab in modal dialogs)

defaults write NSGlobalDomain AppleKeyboardUIMode -int 3

Use scroll gesture with the Ctrl (^) modifier key to zoom

defaults write com.apple.universalaccess closeViewScrollWheelToggle -bool true
defaults write com.apple.universalaccess HIDScrollZoomModifierMask -int 262144

Follow the keyboard focus while zoomed in

defaults write com.apple.universalaccess closeViewZoomFollowsFocus -bool true

Disable press-and-hold for keys in favor of key repeat

defaults write NSGlobalDomain ApplePressAndHoldEnabled -bool false

Set a blazingly fast keyboard repeat rate

defaults write NSGlobalDomain KeyRepeat -int 0

Automatically illuminate built-in MacBook keyboard in low light

defaults write com.apple.BezelServices kDim -bool true

Turn off keyboard illumination when computer is not used for 5 minutes

defaults write com.apple.BezelServices kDimTime -int 300

Set language and text formats

If you’re in the US, replace EUR with USD, Centimeters with Inches, and true with false.
defaults write NSGlobalDomain AppleLanguages -array “en” “nl”
defaults write NSGlobalDomain AppleLocale -string “[email protected]=EUR”
defaults write NSGlobalDomain AppleMeasurementUnits -string “Centimeters”
defaults write NSGlobalDomain AppleMetricUnits -bool true

Disable auto-correct

defaults write NSGlobalDomain NSAutomaticSpellingCorrectionEnabled -bool false


Require password immediately after sleep or screen saver begins

defaults write com.apple.screensaver askForPassword -int 1
defaults write com.apple.screensaver askForPasswordDelay -int 0

Save screenshots to the desktop

defaults write com.apple.screencapture location -string “$HOME/Desktop”

Save screenshots in PNG format (other options: BMP, GIF, JPG, PDF, TIFF)

defaults write com.apple.screencapture type -string “png”

Disable shadow in screenshots

defaults write com.apple.screencapture disable-shadow -bool true

Enable subpixel font rendering on non-Apple LCDs

defaults write NSGlobalDomain AppleFontSmoothing -int 2

Enable HiDPI display modes (requires restart)

sudo defaults write /Library/Preferences/com.apple.windowserver DisplayResolutionEnabled -bool true


Finder: allow quitting via ⌘ + Q; doing so will also hide desktop icons

defaults write com.apple.finder QuitMenuItem -bool true

Finder: disable window animations and Get Info animations

defaults write com.apple.finder DisableAllAnimations -bool true

Show icons for hard drives, servers, and removable media on the desktop

defaults write com.apple.finder ShowExternalHardDrivesOnDesktop -bool true
defaults write com.apple.finder ShowHardDrivesOnDesktop -bool true
defaults write com.apple.finder ShowMountedServersOnDesktop -bool true
defaults write com.apple.finder ShowRemovableMediaOnDesktop -bool true

Finder: show hidden files by default

defaults write com.apple.finder AppleShowAllFiles -bool true

Finder: show all filename extensions

defaults write NSGlobalDomain AppleShowAllExtensions -bool true

Finder: show status bar

defaults write com.apple.finder ShowStatusBar -bool true

Finder: allow text selection in Quick Look

defaults write com.apple.finder QLEnableTextSelection -bool true

Display full POSIX path as Finder window title

defaults write com.apple.finder _FXShowPosixPathInTitle -bool true

When performing a search, search the current folder by default

defaults write com.apple.finder FXDefaultSearchScope -string “SCcf”

Disable the warning when changing a file extension

defaults write com.apple.finder FXEnableExtensionChangeWarning -bool false

Avoid creating .DS_Store files on network volumes

defaults write com.apple.desktopservices DSDontWriteNetworkStores -bool true

Disable disk image verification

defaults write com.apple.frameworks.diskimages skip-verify -bool true
defaults write com.apple.frameworks.diskimages skip-verify-locked -bool true
defaults write com.apple.frameworks.diskimages skip-verify-remote -bool true

Automatically open a new Finder window when a volume is mounted

defaults write com.apple.frameworks.diskimages auto-open-ro-root -bool true
defaults write com.apple.frameworks.diskimages auto-open-rw-root -bool true
defaults write com.apple.finder OpenWindowForNewRemovableDisk -bool true

Use list view in all Finder windows by default

You can set the other view modes by using one of these four-letter codes: icnv, clmv, Flwv
defaults write com.apple.finder FXPreferredViewStyle -string “Nlsv”

Disable the warning before emptying the Trash

defaults write com.apple.finder WarnOnEmptyTrash -bool false

Empty Trash securely by default

defaults write com.apple.finder EmptyTrashSecurely -bool true

Enable AirDrop over Ethernet and on unsupported Macs running Lion

defaults write com.apple.NetworkBrowser BrowseAllInterfaces -bool true

Dock & hot corners

Enable highlight hover effect for the grid view of a stack (Dock)

defaults write com.apple.dock mouse-over-hilte-stack -bool true

Set the icon size of Dock items to 36 pixels

defaults write com.apple.dock tilesize -int 36

Enable spring loading for all Dock items

defaults write com.apple.dock enable-spring-load-actions-on-all-items -bool true

Show indicator lights for open applications in the Dock

defaults write com.apple.dock show-process-indicators -bool true

Don’t animate opening applications from the Dock

defaults write com.apple.dock launchanim -bool false

Speed up Mission Control animations

defaults write com.apple.dock expose-animation-duration -float 0.1

Don’t group windows by application in Mission Control (i.e. use the old Exposé behavior instead)

defaults write com.apple.dock expose-group-by-app -bool false

Don’t show Dashboard as a Space

defaults write com.apple.dock dashboard-in-overlay -bool true

Remove the auto-hiding Dock delay

defaults write com.apple.Dock autohide-delay -float 0

Remove the animation when hiding/showing the Dock

defaults write com.apple.dock autohide-time-modifier -float 0

Enable the 2D Dock

defaults write com.apple.dock no-glass -bool true

Automatically hide and show the Dock

defaults write com.apple.dock autohide -bool true

Make Dock icons of hidden applications translucent

defaults write com.apple.dock showhidden -bool true

Reset Launchpad

find ~/Library/Application Support/Dock -name “*.db” -maxdepth 1 -delete

Add iOS Simulator to Launchpad

ln -s /Applications/Xcode.app/Contents/Applications/iPhone Simulator.app /Applications/iOS Simulator.app

Add a spacer to the left side of the Dock (where the applications are)

defaults write com.apple.dock persistent-apps -array-add ‘{tile-data={}; tile-type=“spacer-tile”;}’

Add a spacer to the right side of the Dock (where the Trash is)

defaults write com.apple.dock persistent-others -array-add ‘{tile-data={}; tile-type=“spacer-tile”;}’

Hot corners

Top left screen corner → Mission Control

defaults write com.apple.dock wvous-tl-corner -int 2
defaults write com.apple.dock wvous-tl-modifier -int 0

Top right screen corner → Desktop

defaults write com.apple.dock wvous-tr-corner -int 4
defaults write com.apple.dock wvous-tr-modifier -int 0

Bottom left screen corner → Start screen saver

defaults write com.apple.dock wvous-bl-corner -int 5
defaults write com.apple.dock wvous-bl-modifier -int 0

Safari & WebKit

Set Safari’s home page to about:blank for faster loading

defaults write com.apple.Safari HomePage -string “about:blank”

Prevent Safari from opening ‘safe’ files automatically after downloading

defaults write com.apple.Safari AutoOpenSafeDownloads -bool false

Allow hitting the Backspace key to go to the previous page in history

defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2BackspaceKeyNavigationEnabled -bool true

Hide Safari’s bookmarks bar by default

defaults write com.apple.Safari ShowFavoritesBar -bool false

Disable Safari’s thumbnail cache for History and Top Sites

defaults write com.apple.Safari DebugSnapshotsUpdatePolicy -int 2

Enable Safari’s debug menu

defaults write com.apple.Safari IncludeInternalDebugMenu -bool true

Make Safari’s search banners default to Contains instead of Starts With

defaults write com.apple.Safari FindOnPageMatchesWordStartsOnly -bool false

Remove useless icons from Safari’s bookmarks bar

defaults write com.apple.Safari ProxiesInBookmarksBar “()”

Enable the Develop menu and the Web Inspector in Safari

defaults write com.apple.Safari IncludeDevelopMenu -bool true
defaults write com.apple.Safari WebKitDeveloperExtrasEnabledPreferenceKey -bool true
defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2DeveloperExtrasEnabled -bool true

Add a context menu item for showing the Web Inspector in web views

defaults write NSGlobalDomain WebKitDeveloperExtras -bool true

Enable the WebKit Developer Tools in the Mac App Store

defaults write com.apple.appstore WebKitDeveloperExtras -bool true


Disable the iTunes store link arrows

defaults write com.apple.iTunes show-store-link-arrows -bool false

Disable the Genius sidebar in iTunes

defaults write com.apple.iTunes disableGeniusSidebar -bool true

Disable the Ping sidebar in iTunes

defaults write com.apple.iTunes disablePingSidebar -bool true

Disable all the other Ping stuff in iTunes

defaults write com.apple.iTunes disablePing -bool true

Disable radio stations in iTunes

defaults write com.apple.iTunes disableRadio -bool true

Make ⌘ + F focus the search input in iTunes

defaults write com.apple.iTunes NSUserKeyEquivalents -dict-add “Target Search Field” “@F”


Disable send and reply animations in Mail.app

defaults write com.apple.mail DisableReplyAnimations -bool true
defaults write com.apple.mail DisableSendAnimations -bool true

Copy email addresses as [email protected] instead of Foo Bar <[email protected]> in Mail.app

defaults write com.apple.mail AddressesIncludeNameOnPasteboard -bool false

Add the keyboard shortcut ⌘ + Enter to send an email in Mail.app

defaults write com.apple.mail NSUserKeyEquivalents -dict-add “Send” “@U21a9”


Enable “focus follows mouse” for Terminal.app and all X11 apps i.e. hover over a window and start typing in it without clicking first

defaults write com.apple.terminal FocusFollowsMouse -bool true
defaults write org.x.X11 wm_ffm -bool true

Time Machine

Prevent Time Machine from prompting to use new hard drives as backup volume

defaults write com.apple.TimeMachine DoNotOfferNewDisksForBackup -bool true

Address Book, Dashboard, iCal, TextEdit, and Disk Utility

Enable the debug menu in Address Book

defaults write com.apple.addressbook ABShowDebugMenu -bool true

Enable Dashboard dev mode (allows keeping widgets on the desktop)

defaults write com.apple.dashboard devmode -bool true

Enable the debug menu in iCal (pre–10.8)

defaults write com.apple.iCal IncludeDebugMenu -bool true

Use plain text mode for new TextEdit documents

defaults write com.apple.TextEdit RichText -int 0

Open and save files as UTF–8 in TextEdit

defaults write com.apple.TextEdit PlainTextEncoding -int 4
defaults write com.apple.TextEdit PlainTextEncodingForWrite -int 4

Enable the debug menu in Disk Utility

defaults write com.apple.DiskUtility DUDebugMenuEnabled -bool true
defaults write com.apple.DiskUtility advanced-image-options -bool true


How to enable faster WiFi Roaming with Mac OS X & Airport base stations

sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport prefs joinMode=Strongest


Show Full Path In Finder Title Bar

 defaults write com.apple.finder _FXShowPosixPathInTitle -bool TRUE

Disable Dialog Box Animation

 defaults write NSGlobalDomain NSWindowResizeTime 0.001

Disable New Window Animation

 defaults write NSGlobalDomain NSAutomaticWindowAnimationsEnabled -bool FALSE; killall SystemUIServer


Disable Tooltips

 defaults write -g NSInitialToolTipDelay -int 999999; killall Finder


Disable Mission Control Animation

 defaults write com.apple.dock expose-animation-duration -int 0; killall Dock

Show All Hidden Files

 defaults write com.apple.finder AppleShowAllFiles TRUE