FireBug 2.0.19

Few Mozilla Firefox extensions are as useful for web developers and programmers as FireBug. And is that this tool is capable of analyzing the source code, being able to locate and correct all kinds of errors instantly and without any difficulty.

Its method of action is to open a new window in Firefox as if it were a console, showing all possible bugs in HTML code, CSS or JavaScript.

FireBug also acts on the DOM data and the design of the website in question.

Its installation is very simple. Simply run the XPI file or drag it over the Firefox icon.