Firefox Community Forum

I need to call an executable script that I wrote when I click on a link to a file of a certain file type. I used to be able to browse to my script in order to set it as the desired application, but now I can't find any way to persuade Firefox to call my script when, for example, the linked-to file's name ends in '.dng'. Where is the list of such applications, and how do I add my script to it?

Hello if i enter proxy and ip address in firefox in Manual proxy configuration section then when i open a website its asks for username and password my question is can proxy owner see my data and i am using https websites like post data ?

I'm trying to access a local web application (GoPhish) running at https://127.0.0.1:3333 on Kali Linux. Firefox is showing a security warning and won't let me access the site . How can l bypass this warning safely, or add an exception for local addresses with self-singned certificates?