Favorites folders don't show up in "Save for Web"

I noticed this problem in Adobe as well as other applications. I suspected it was not an Adobe issue, it was a Mac Issue. I looked on the Mac forums and sure enough, other people were reporting this issue in the finder as well. The soultion that worked for me was going to the Library (hold down the option buttion while using the GO command in the finder menu) Open preferences, and find the com.apple.finder.plist item and drag it out to your desktop. Restart and see if the problem goes away (preferences in the finder will revert to factory settings, so you may have to reset them)  It worked to restore favorites in the sidebar of all my programs. If this does not work for you you can place the plist file back in the library and restart to restore your settings

Not sure why this keeps getting marked as the correct answer. It is an answer for sure - but it's certainly not addressing my original question.

I've encountered this same issue while while doing a "Save As" in other Adobe products (Acrobat for example), so while the above poster's opinion may be that I should save things a different way than I'm currently doing it - it's irrelevant to my question.