
If you are using Firebug 1.11+, you can do this:
1) Open firebug@software.joehewitt.com.xpieither your .xpi file (extract) using the Winrar / Winzip archive program
2) Find the line font-family: monospace; in all .css files
3) Replace everything font-family: monospace;=>font-family: consolas, monospace !important;
4) Save the file, make it an archive (zip, rar), and then change its extension => .xpi
5) Restart Firefox.
user1725620
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