Hi mdrake,

Does the actual folder change when you look at the preference or does it still show the folder that you specified? Anyway, you should look at the article How to fix preferences that won't save. It could be the FF can't save to your pref.js file.

You could also try starting Firefox in Use Troubleshoot Mode in Firefox. If you don't have the issue while all of your add-ons, extensions, and themes are disabled, you can try adding them back in one by one until you find the culprit. You should look at the Extensions and Themes troubleshooting guide and the Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems article as well.

You might want to try creating a new profile.

Hopefully this helps!

It is possible that your anti-virus software is corrupting the downloaded files or otherwise interfering with downloading files by Firefox.
Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.

See "Disable virus scanning in Firefox preferences - Windows"

• http://kb.mozillazine.org/Unable_to_save_or_download_files