TCOBrowser 0.8 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. The TCOBrowser installer is commonly called TCOBrowser-0.87.dmg. The application is included in Internet & Network Tools.
This free Mac application was originally designed by Stone Design's Create. The following version: 0.8 is the most frequently downloaded one by the program users. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
TCOBrowser is a Cocoa viewer application dedicated to the TeX Catalogue Online, using the XML version of the catalogue. It was written to provide an easy way for Mac OS X users to access documentation and information about TeX and TeX-related packages available through CTAN, as well as some of the documentation on their local system.
You may want to check out more software for Mac, such as Cooliris Widget, VisComPic or Mars, which might be related to TCOBrowser.