First download the Firebug XPI file, later you call the add_extension method available for the firefox profile:
To reset how all file types are handled by Firefox back to default: Open your profile folder:.
This must be the default program set for the file your downloading and your you can go into references, look for applications, find the file type your download
Piriform - Authors of the hugely popular software CCleaner, Defraggler, Recuva and Speccy. Available for Firefox, Chrome, and Safari, PDF Download was recently acquired by Nitro, leading to plenty of new features and updates. Sometimes while downloading any file with your default mobile browser they may halt in between due to range or browser problem. But when you try to resume them they show some type of error due to which you need to download the entire file… Can't save the homepage in Firefox? It does not remember passwords, print or proxy settings? This post will show you how to make Firefox save settings. Many of the most common issues that arise when using Mozilla Firefox, Portable Edition are addressed here. Please read through the various topics to see if any of them address your question. File Type Support Page
