Is it possible to set config settings on Firefox from a Addon
I'm looking for a way to print from web without prompting the print dialog ( I just made the question ). I found This method for Firefox and it seems to work, but it obviously will affect all websites. So I'm thinking of developing a Firefox Addon that makes this configuration to affect only specific websites. I don't know nothing about building Firefox addons, but if it's possible to change settings this way I will learn how to do it. So my question is.. Is it possible to set config settings on Firefox from a Addon and for specific websites? Thanks a lot. If you are going to develop a Firefox