As an IDE, one of the features that Komodo must have and must do well (IMO) is code intelligence. It MUST help you understand the code your working on more quickly (even if...ESPECIALLY IF it's yours).
Komodo has had Code Intelligence for most of its life and a few different tools in Komodo are built to query the database created by this system. The Symbol Browser is one of those tools. I mentioned it in another blog I wrote outlining one of the many helpful tools in Komodo, Top 11 Tips and Tricks. We also have a short video that explains how to use the Komodo Symbol Browser.
Have a look: