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Impasse is a new Firewall front-end for Mac OS X.1 written with two design goals: ease of use and intelligence. To that end, Impasse has the following features:

  • Accessibility. A firewall is a constant application that is more about the state of a computer rather than performing a task for a user. As such, it is a logical addition as a pane to the System Preferences application.
  • Auto-detection. Impasse automatically detects what services you are running when you try to start your firewall. It then prompts you about differences in those services and the services allowed through your firewall.
  • Easy Mode. For more...

What's New

Version 1.3 adds support for the iPod 1.2 software.


MacOS X 10.1 or later

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Impasse X User Discussion

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bb553 Member IconComment+23

Impasse X 1.3 for OS X

text of OS X 10.4.11 (8S165) PPC error message:

Archive Utility

Unable to unarchive "impasse.dmg.gz" into "Desktop".
(Error 1 - Operation not permitted)

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Version 1.3
Anonymous Member IconReview

Great firewall frontend. Some problems with Mac OS X 10.4.1; the preferences pane has crashed a couple of times but the firewall keeps running.

One big problem is that http://www.glu.com no longer list impasse on their website so who supports it now?

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Version 1.3
Anonymous Member IconReview

Easy and practical tiny Firewall. Though it states that it is turned OFF, while the logs are filling with traffic. The start button is inactive. I'm a bit puzzled...

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Version 1.3
There are no Ratings for this App yet.
> 4 2


Current Version (1.x)


Downloads 5,890
Version Downloads 2,421
License Shareware
Date 22 Aug 2002
Platform OS X / PPC 32
Price $10.00
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