Lion is the marketing name for OS X v10.7, the seventh major upgrade to OS X. As of this release, Mac was dropped from the marketing name of "Mac OS X".

learn more… | top users | synonyms (3)

13
votes
1answer
4k views

How to make clicking on icon in dock == open new instance

I have several applications in my dock that can have multiple instances open (eg. Chrome, iTerm, Sublime, etc.) When I click on one of the icons, I want a new window to open (this is what happens if ...
13
votes
2answers
6k views

keyboard no longer repeats keys when held down

I just wanted to make some input where I press a key and the auto-repeat function engages so I don't have to press the 0 key many times to make a long number. 10000000000000000000000000000 This has ...
13
votes
3answers
26k views

Is it safe to delete the /Developer folder on Mac OS X 10.7.5 (Lion)?

My computer originally had Mac OS X 10.6 (Snow Leopard) installed on it but has since been upgraded to OS X 10.7 (Lion). I noticed that the /Developer folder is still on the hard drive even though ...
13
votes
5answers
2k views

Is there a way to get Terminal on Lion to start up cleanly (without the buffered history)?

How can I prevent Terminal from showing me my old output when it starts? I would like it to always start with a clean window.
13
votes
2answers
4k views

What are the implications in speed and battery life while using Filevault 2?

One of the neat new (though understated) features of Lion is Whole Disk Encryption. Before I flick the switch, I'd love to know what the performance impacts (speed and battery impacts) of switching ...
13
votes
4answers
12k views

Can i change the default Mac App Store install folder?

I prefer to have all applications installed per-user, to ~/Applications/ rather than globally. The default location for apps installed from the Mac App Store is the global applications folder located ...
13
votes
1answer
1k views

How to access a clicked URL in a URL handler application created in Automator

I'm currently trying to modify the default URL handling behavior in OS X. I would like, when clicking on any link outside of a web browser, to copy this URL to the pasteboard instead of opening it in ...
13
votes
2answers
8k views

How can I check for available entropy?

On linux systems, one can check for available entropy (useful to know if you're tapping /dev/random for any PRNG purposes) with cat /proc/sys/kernel/random/entropy_avail However, there is no ...
13
votes
2answers
3k views

Lion version of vim crashing repeatably - caught deadly signal SEGV

whenever I work on multiple files in different vim buffers/tabs and do a :w to save, vim crashes with a segmentation fault. I'm using vim 7.3 that came long with Lion (Actually with SnowLeopard ...
13
votes
4answers
3k views

Single desktop image for all desktops

I upgraded from Snow Leopard to Lion. Afterward when I would set a Desktop picture (either through System Preferences or iPhoto) it was applied to all desktops. Yesterday I control clicked the ...
12
votes
6answers
17k views

Unsaved Files in OS X Lion

Where do unsaved files go in Lion? I quit TextEdit without saving since I had no intention of saving, but with autosave the file still got save somewhere since when I reopen TextEdit the file I was ...
12
votes
10answers
5k views

Is screen zoom broken in Lion?

For years I've zoomed the whole Mac OS X screen with Control ⌃ + two finger scroll on the trackpad. It was very useful when giving demos and when wanting to zoom in on a YouTube video. Since I ...
12
votes
3answers
18k views

How do I disable Spotlight?

How can I disable Spotlight completely on Mac OS X Lion? It's using up a lot of resources and I never really use it, so I want to disable it. The only feature I might want to keep is the icon in the ...
12
votes
5answers
8k views

Is there a way to hide certain apps from the cmd+tab menu?

Is there a way to hide certain apps from cmd+tab? The problem I'm facing is that I have some apps (like iTunes and of course Finder) always open. But when I'm working and switching between apps that ...
12
votes
1answer
27k views

Is it safe to delete the contents of Library/Application Support/MobileSync/Backup if using iCloud?

My /Users/{username}/Library/Application Support/MobileSync/Backup is 5GB and I'd really like to reclaim that space if I can. I back up my iPhone, iPad, and iPod Touch to iCloud, so is there any ...
12
votes
8answers
34k views

Free .CSV text file editor for Mac OS X?

I am looking for a free editor to edit comma-delimited text files, or .csv format.
12
votes
3answers
12k views

How do I know if I have the Lion recovery partition set up?

I am looking to swap my HDD for SSD and OWC recommended methods 2 listed in this link Perform your drive upgrade. Place your original drive in an external enclosure. Boot to the recovery partition ...
12
votes
2answers
10k views

Is it possible to use a gesture to go back in Finder in Lion?

I miss the ability to go back to previous directory via a gesture (swipe with two finger right like in Safari or Chrome) in Finder. Is it possible to enable it? Edit: I'm on a MacBook Pro, and using ...
12
votes
3answers
20k views

In Lion, how can I configure to not automatically re-open recent files that weren't closed?

For example: I opened some files in Excel, then I close Excel, without close each file (ex.: command + Q). In the next time that I will open Excel, it is going to open my recent files that weren't ...
12
votes
4answers
66k views

How do I temporarily disable or mute Messages (iMessage) on OS X?

I use Apple's iMessage across several devices, including my (OS X Lion) Mac, using the recent Messages beta. However, the application has some undesired behaviour. When I quit Messages, it will ...
12
votes
4answers
1k views

How can I improve/replace View Source in Safari?

As a new convert to Safari, I am astonished by how unbearably ugly default page source view is. The font is miserably small and unaliased, leave alone color highlighting. Is there a way to enhance ...
12
votes
4answers
19k views

MacBook Air with small SSD, BootCamp, Windows 7. Can I use an external hard disk for dual boot?

I'd like to setup a dual boot onto my MacBookAir 128GB, with Microsoft Windows 7 Ultimate in BootCamp. However, I'm already close to the 128GB limit (games + CS suite + Eclipse + XCode + a lot of Web ...
12
votes
2answers
4k views

Does “Secure Empty Trash” securely delete the hidden version files for documents in the Trash in OS X Lion?

The new Versions feature in Lion creates hidden files that store old versions of the document you're working on in case you want to revert back to some older version of the document. If I drag a ...
12
votes
3answers
27k views

Reinstall Mac OS X Mountain Lion before selling a Mac

I want to sell my laptop (Macbook Pro late 2011). I have erased my disk drive but it seems that I cannot reinstall Mac OS without an Apple ID. At the origin my mac was shipped with Lion, I have ...
12
votes
2answers
2k views

Will FileVault 2 wear out my SSD faster?

I'm considering using FileVault 2 when I upgrade to Lion. Though my understanding of it is weak, it seems as though it shouldn't really increase the number of reads or writes per disk operation ...
12
votes
1answer
369 views

Is there a keyboard shortcut for Don't Save?

One thing I do a lot is Command ⌘-Tab over to TextEdit, jot down some notes, and then decide to throw them away. I can close the window with ⌘-W, but is there a way to not-save it from just the ...
12
votes
1answer
3k views

In Lion, if I keep pressing a key, why doesn't it repeat?

I don't know if there are any settings to toggle, but I figured out that if I keep pressing a button on my keyboard it doesn't repeat it and displays only one character! Can this be fixed to go back ...
12
votes
3answers
9k views

Mac App Store - how to check which account was used to buy app

I'm trying to update Growl, however App store says "To update this application, log in with account which was used to buy this application". The thing is that i don't have any other Apple ID. Is it ...
12
votes
5answers
82k views

Enable URL rewriting (mod_rewrite) using .htaccess files in ~/Sites on Lion

I cannot get mod_rewrite to work on Lion. I am developing a number of websites locally, in ~/Sites, using .htaccess files. I am on 10.7.3 and I have not touched any configuration files except for ...
12
votes
4answers
11k views

MTMFS consuming an entire CPU core and fans running full bore with Lion

You may be aware that Lion introduced MTMFS, the Mobile Time Machine File System. I've had a couple of instances now where MTMFS has been chewing up an entire core of my dual-core (mid 2009) MacBook ...
12
votes
2answers
8k views

Disable system wide Ctrl+Click in OS X

I'm used to navigating through my code using Ctrl+Click. In OS X this function still works in my IDE, but it opens a context menu as well, which is very annoying! I've done lots of Googling and ...
12
votes
4answers
6k views

Creating an automated HFS+ compressed folder

I would like to set up an automated way for archiving files in OS X Lion. By archiving I mean using HFS+ compression feature on a specific folder, and make every file that I move into this folder ...
12
votes
4answers
5k views

Why are my plists in ~/Library/Preferences accompanied by a matching lockfile in Lion?

$ cd ~/Library/Preferences $ ls -1 | grep plist | head -10 AddressBookMe.plist com.adiumX.adiumX.plist com.adiumX.adiumX.plist.lockfile com.apple.AddressBook.plist com.apple.AddressBook.plist.lockfile ...
12
votes
1answer
2k views

Is it possible to add other networked sources to the Apple Dictionary program?

The standard Apple Dictionary program in Lion provides access to Wikipedia. This appears to be a direct look-up (i.e., not to a cached local copy of Wikipedia). I'd like to add other sources that ...
12
votes
2answers
21k views

How to enable USB tethering on your Android phone to Mac OS X Lion

I want to tether an unlimited data plan on a Nexus S (with Android 2.3.6) via USB cable to a MacBook Air (with OS X Lion). Both on Windows and Ubuntu, it works like a charm, so I'm wondering if ...
12
votes
9answers
16k views

Window out of visible workspace range / unreachable

I'm running OS X Lion on a MacBook Air 11", and when I unplug my secondary display, some windows (e.g., Finder) are overflowing at the edge of the screen. This usually happens on the right-hand side ...
12
votes
3answers
8k views

Is there a keyboard shortcut to jump directly to a particular full screen app in Lion?

When you full screen an application in Lion, it "flies out" of the desktop space it started in, and winds up at the end of the spaces list (assuming you have turned off auto-arranging). As a result ...
12
votes
4answers
9k views

Hide ONLY .app file extensions but show the rest

Is there a way to hide ONLY .app file extension? I know that you can enable or disable the visibility of file extensions in Finder but I'm interested in avoiding .app file extensions from showing up. ...
12
votes
1answer
5k views

Confused: Will Find My Mac work if the thief just did the hold ctrl and power button restore?

Recently had my macbook pro stolen. It's a mid 2012 model with mountain lion so it can reset the OS by just by holding ctrl and the power button. I've done it many times myself so I know all they have ...
11
votes
6answers
3k views

Why doesn't AirDrop work on older network adapters?

Apple has stated that AirDrop will support only the following models: AirDrop supports the following Mac models: MacBook Pro (Late 2008 or newer) MacBook Air (Late 2010 or newer) ...
11
votes
3answers
8k views

Keyboard shortcut for “Show Package Contents”

I know you can use ⌘+O to open a folder, however when you do that on an application it opens the application. Is it possible to either make ⌘+O always show the contents or is there ...
11
votes
3answers
9k views

How do I make Terminal.app's scrollbars disappear in Lion?

Once I upgraded to Lion, I found out that the vertical scrollbar is always plastered to the right side of the application window. Because I run GNU Screen within Terminal.app, the right side of the ...
11
votes
8answers
164k views

Wifi Won't Connect; Connection Timeout (Mac)

I'm having issues with my macbook pro OS X 10.7.5. It used to connect to the wifi router (D-Link N300, DIR=615) no problems. But for the past several weeks, I haven't been able to at all. What pops ...
11
votes
3answers
2k views

Why do full-screen applications change their order in Mission Control?

How are fullscreen apps organised? This is usually my workflow: Dashboard / Desktop / Safari / Pages I sometimes go to Pages and type some things and go back to Safari, and then I find that it ...
11
votes
6answers
15k views

How can I remove unwanted apps, such as Chess or Address Book, from my Mac? [closed]

There are a lot of applications that I have no use for that take up space on my Mac that I want to delete. When ever I try to delete them it says that it is an essential part of the OS but with ...
11
votes
1answer
5k views

Mencoder on Lion

Is there a way to install mencoder on Lion, preferrably using homebrew?
11
votes
8answers
49k views

How can I copy the OS X system image from primary HDD to new SSD?

I bought a 240 GB SSD to replace the 500 GB primary HDD in my new MacBook Pro. How do I clone the current Lion system image on my 500 GB HDD to the SSD? I want to clone the entire drive not just copy ...
11
votes
4answers
17k views

How do I run the iPad simulator to test a website on my mac

I've developed a web app which is having some weird issues on iOS safari on my iPad. I've never developed an iOS app, although I am a developer (c#) and have downloaded the latest xcode dev tools ...
11
votes
4answers
8k views

Safari reopens last open tabs?

On Lion, if I quit Safari using ⌘ Command+Q and then restart it, it reopens all tabs from last time. In Preferences, I have set that new Windows open with an Empty Page, a setting that worked fine ...
11
votes
6answers
3k views

Command+right/left stopped working

On a couple occasions since I installed Lion, the keyboard shortcuts ⌘+→ and ⌘+← have stopped working to navigate to the beginning/end of a line inside text fields and such. Any ideas what's going ...