May 12, 2014  Today, we will talk about getting even more out of your Mac OS X with the power of third-party apps. We have already discussed how you can use Slate to rearrange windows, GeekTools for tricking out the desktop, MagicPrefs to bring more power to the Magic Mouse (and trackpad), Supertab to bring more power to ⌘ + Tab. Oct 07, 2019  If you download and install apps from the internet or directly from a developer, macOS continues to protect your Mac. When you install Mac apps, plug-ins, and installer packages from outside the App Store, macOS checks the Developer ID signature to verify that the software is from an identified developer and that it has not been altered. When sharing the Mac with other people hide the allow apps from anywhere option. To do this, open terminal and type the command below: sudo spctl –master-enable. Option 2: Open Apps in Applications Folder. Drag the downloaded app to the Applications folder. Right click on the application or press the control button on the keyboard. Sep 27, 2016  I have been purchasing or obtaining non-approved apps since day 1 of my converting to Mac computers. So those of us using PathFinder instead of the anemic Finder, or Moon, or other so-called “3rd party apps” that make the use of Apple computers better for a lot of us either have to be fortunate enough to find such apps in the App Store. Apr 01, 2017  If you trust the application and know you want to install it, follow these steps to allow third party apps to install. Open 'System Preferences' by clicking on the Apple icon and choosing that.

No. You'll need to use a 3rd party app. You want an app that will identify the potential duplicates, put them in an album or mark them with a keyword for easy retrieval and deletion by you. You don't want one that does the deletion itself for obvious reasons.

I've run tests on the following apps with these results:

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PhotoSweeper - $9.99 - Demo version available.

PowerPhotos - $29.95

PowerPhotos is the iPhoto Library Manager version for Photos and is very powerful. Although more expensive I would recommend it as it has more capabilities than the others like the capability to merge Photos libraries or copy photos, both original and edited, along with their metadata between libraries.

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PhotoSweeper compares bitmaps and/or histograms so it can detect duplicate images even if they have different file sizes, file names, image sizes and capture dates.

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May 27, 2020 9:58 AM

I think it would be much more valuable to teach people how to read Crash Reports. I noticed that many are afraid when they see some hexadecimal address numbers, but in fact, you only need to scan the document from top down and search for the 'Exception Type' and the first or second line after 'Thread X crashed'. For example, here's a (random) crash report from Finder:

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Now, look at the reason, why it crashed; you'll typically find it at 'Exception Type':

Exception Type: EXC_BAD_ACCESS (SIGSEGV)

EXC_BAD_ACCESS is a very typical reason and it simply means that the application tried to access an object which wasn't there anymore (common memory management error).

Each application has more than one thread and we want to find the thread that crashed, so look out for 'Thread x Crashed':

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libobjc.A.dylib 0x00007fff8ecb2e90 objc_msgSend + 16
1 com.apple.AppKit 0x00007fff8a25c150 -[NSWorkspace iconForFile:] + 41
2 com.apple.AppKit 0x00007fff8a6f9c55 -[NSView(NSDrag) dragFile:fromRect:slideBack:event:] + 71
3 com.binaryage.totalfinder 0x000000010ac752ca -[TabView mouseDown:] + 812

From top down you'll find the history of this crash. If we start looking at number 3 first, we find that there was a mouseDown event on a tab in the (nice btw) extension TotalFinder. 2 shows us there was a drag operation in AppKit and 1 tried to get the icon image from the NSWorkspace (AppKit as well). 0 finally shows, that there obviously was no icon image to be found and the application crashed.

So, to sum it up: it is relatively certain that most of Apple's frameworks (like com.apple.AppKit) are not the culprits, so go back until you find the app name that crashed or a third party extension. Typically, you'll find it in the first two to five rows of the crashed thread.

So, if there was any plugin or system enhancer involved, you can really easily find out who's the culprit. Well, in 90% of all cases that is.

After this, you can go on and read the linked document.