Home PDF Download solves the problems everyone has about handling PDF files with Firefox.
This extension, every time you click on a link, checks if the target is a pdf file and in this case let you choose what you want to do (open pdf file inside or outside Firefox, download it to the filesystem or view it as HTML). PDF Download is not a PDF plugin: you still need to have installed the Adobe or the FoxIt PDF plugin if you want to open a PDF inside Firefox. Are you annoyed to click on a link and then wait a lot of time just because the PDF plugin is loading? Then PDF Download is the right extension to install!