I *think* I've found what was causing my no-console-logging problem: I'm using Visual Studio 2013, with Web Essentials. Web Essentials has a 'browser link' tool which allows - I think - some modifications made in the browser to be pushed back into Visual Studio.
I didn't notice this message on my work computer, but on my laptop I noticed that the Firefox console (*i.e.* not Firebug but the built-in developer tools' console) displayed a message saying that the console API had been disabled by a plug-in. I clicked on the message and it took me into a minified line of JS inside the browser-link.js file. So I then went into Visual Studio's options and disabled the 'browser link' setting (set it to false) and tried again. Voila! I now have console-logging in Firebug once more. -- You received this message because you are subscribed to the Google Groups "Firebug" group. To unsubscribe from this group and stop receiving emails from it, send an email to firebug+unsubscr...@googlegroups.com. To post to this group, send email to firebug@googlegroups.com. Visit this group at http://groups.google.com/group/firebug. To view this discussion on the web visit https://groups.google.com/d/msgid/firebug/136cba55-1335-4fd7-b0ec-b4ac8fcd9cd1%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.