FogBugz Screenshot 4.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The actual developer of this free Mac application is fogbugz. The following version: 4.0 is the most frequently downloaded one by the program users. The application lies within Design & Photo Tools, more precisely Screen Capture.
From the developer:
A picture can be worth a thousand words, and sometimes adding a screenshot showing a bug to your bug reports can save a lot of explanation. The FogBugz Screenshot tool runs on your Windows or Macintosh desktop. To install it, log into FogBugz and on that first page click the Capture Screenshots link in the middle of the page.
You may want to check out more Mac applications, such as Screenshot Maker, Screenshot Monitor or Screenshot Grab, which might be related to FogBugz Screenshot.