This extension is absolutely indispensable in the toolbox of every web designer / frontend developer. But..
With the restrictions of the latest 'updates' of Firefox the workflow of this awesome add-on is completely DESTROYED
It's like forcing the dentist to drill teeth with a rake..
1. Download the last working version -whit this add-on- of Firefox (be sure to disable automatic updates!)
2.Install the one and only working version of this fantastic add-on (Version 1.2.13)
Can someone give me advice about a software package / IDE that offers the same functionalities (and front-end workflow!!) of this add-on?