As we all know, Firebug is a must have extension for all web developers, designers and for a lot of other web enthusiasts.
As I'm using Firefox in my domestic language which isn't english, Firebug automaticly detects the browser interface language, and you can't change it's language back to English.
For some people this is okay, but some just want to have Firebug with english interface. Firebug does not offer the option to switch language, so we have to make a little workaround.
This tutorial was made on Windows XP, but all newer versions of windows should have almost the same principle.
You can choose between two methods:
Change Firebug language by editing chrome.manifest and changing Firebug language by editing about:config which is available in Firebug version 1.6 and newest.