Windows 7 FFX 4.1 fix Rated 4 out of 5 stars

I have purchased a new CPU and am in the process of re-installing Firefox with Windows 7. Drag and Drop Upload will not install into Firefox 4.1 so how can I edit the "install.rdf" when it doesn't exist in my extensions folder. Any help would be great, I love this add-on and would be happy to donate if I can get it to work.

thank you

This review is for a previous version of the add-on (1.9.37).