What are the alternatives to the Firefox Developer Tools?

Question

Since last few updates of Firefox our beloved Firebug is integrated into the Firefox Developer Tools and a lot of people including me don\'t like what happened to Firebug.

Answer 1

Following Sebastian's advice I've downloaded old Firefox portable v47 from here:

https://sourceforge.net/projects/portableapps/files/Mozilla%20Firefox%2C%20Portable%20Ed./Mozilla%20Firefox%2C%20Portable%20Edition%2047.0.1/

and I'm using it with Firebug only for development. According to Firebug's website 47 is the last compatible version of Firefox:

https://getfirebug.com/downloads

To avoid compromising on security, for normal browsing I use updated version of Chrome.