Little Snitch

it's a world champion in downloads! over 1 Million ! wow!...and I thought Onyx was #1

v5.3.1 is out.

When I tried to pay for a license the web site payer would not take my valid payment credit card I used however my Bank says the payment went through! So where is my key and you need to speak to payout company!!!!

5.x has been horrible to use. I constantly run into cache corruption issues where certain sources just completely stop loading. There is a glaring where if you are a developer where Xcode compiled apps will constantly trigger dialogs even if previously allowed all. Just a complete mess. Avoid 5.x.

After upgrading to Big Sur 11.3 last week Little Snitch decided to stop working correctly and it started to block regular apps that I use like App Store, NetNewsWire, and MacUpdater. It didn't affect and browsers such as Brave or Chrome. What it did on a constant basis was block updating apps via the update procedure in the apps. I have tried to delete it via Trash and reboot but some components of the app with not delete and trying to find the uninstaller that is supposed to be someplace in a folder could never be found, rather they suggest you use the option key when opening the app, which still hasn't deleted the files and now have more junk on my SSD.

Getting expensive, using Lilu instead

5.1 corrupted image !

v4.6 is out, running ONLY on macOS 10.15 Catalina. It's the last of the v4.x series. v4.5.2 is the last version for macOS 10.14 Mojave and contains an important security patch.

killer

Little Snitch 4.5.2 + Serial number

A top must-have. I've owned a license to Little Snitch for so long I cannot even remember when I first started using it (sometime around when it was first released). Through the years the support has always been excellent as well as the product.

It's simply the best! Never have had big problems with it and it rescues me often in the past. A big thanks to the developers...

Dated April 22, v4.5.1 may have already been updated on your Mac. - - I have to point out that the recent Little Snitch versions have become more difficult to use from the user's perspective. That dings it one star in my review. However, if we're using Little Snitch in the first place, we've already invited in an amount of user hostility for the sake of having fine grained control over what our computer software is doing out on the InterWebs. Despite the increase in complexity, I've realized that the recent updates/versions provide an even finer grain of control, once you get over the added learning curve. I appreciate that. Now, if only that control was made easier again for the user to access and use via fewer clicks and more obvious options. - - All in all, this is one of my Mac's greatest asset applications.

I give you a nice trick I use (with Little Snitch or other similar app): block http for Mail.app (or other mail client), it will avoid displaying many useless images! (and incidentally save some bandwidth) Usually, the long-standing images of many newsletters are served through http and not https (don't ask me why) , I've just noticed that, and it also applies to many spammers (when they don't use Base64 images). This doesn't apply to serious websites, so it might give you a hint of how a given website is considering privacy... You can also apply more advanced filters on mail clients — I must say that I've always allowed full connections to them and was amazed of the unwanted connections (tracking) they do when I started filtering them. I think we always consider filtering for apps and browsers, not mail clients as they don't have security extensions such as uBlock, uMatrix, etc. What do you think? :-)

Doesn't load system extension properly. Developer is not shown in Security & Privacy Pref Panel under Allow button. Had to disable SIP and re-enable to get extension to load. Until developer fixes this problem, I will continue to give 1 star review.

I have used this app for a while. Then my computer was stolen. Then I found out that I would have to pay $50+ to install it on my new computer. Sorry but as much as I like the app, it's just not worth that much money. Plus, I must confess that it seems that the level of time investment necessary to make it work the way I would like is continuously increasing. There's no convenient way to tell what some of the callouts mean without much research and T&E. I have other things to do; I'm an engineer for christsake...LOL. If LS actually helped solve that problem and I do believe it can then it would be worth more to me but the current look up info is not very useful because it frequently finds nothing...

Current update to Mac OS 10.15.4 Catalina says that there is a legacy extension that will not work in future versions of Mac OS

muy buena esta aplicacion, es la mejor para monitorear todo el trafico de red en las macbook pro...

The first app I install on any new Mac.

Um, yeah. If you installed this after the Catalina upgrade, here is the terminal fix: When you install Little Snitch on macOS Catalina, you may get an error message “Little Snitch version mismatch detected” after restarting your Mac. This is due to a bug in macOS Catalina, sometimes failing to update the boot cache for the newly installed kernel extension. If you are experiencing this problem, please perform the following steps: Restart your system in macOS Recovery. Learn more If you have enabled FileVault to encrypt the contents of your system volume, you first have to mount that volume: Open “Disk Utility”, select your system volume in the sidebar and click the “Mount” button in the toolbar. Please be patient – mounting FileVault volumes may take quite a while. Once the volume is mounted, quit the “Disk Utility” application. Open Terminal from the Utilities menu in the menu bar. Enter the following command: touch "/Volumes//System/Library/Extensions" Note: Replace with the actual name of the volume on which macOS Catalina is installed (usually “Macintosh HD”) Wait about 10 seconds. Then choose “Restart” from the Apple menu in the menu bar to restart your computer. Shutting down can take up to a few minutes because the system is rebuilding the boot cache in the background. Note that during this time no progress indication is shown.