"Inspect Element with Firebug" has mysteriously reappeared (in the contextual menu) for me too. It brings up Firebug, not "the Firefox DevTools with a Firebug theme".
However, the Firebug window that it brings up is still partially broken. The HTML tab works (I can edit something and see the changes take effect). But the Console is still completely broken; even if "enabled" it remains blank. I haven't bothered trying the debugger. I don't know why Firebug reappeared in the contextual menu, but this reminds me of the death spasms of an animal that's neither completely alive nor completely dead. -- 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 https://groups.google.com/group/firebug. To view this discussion on the web visit https://groups.google.com/d/msgid/firebug/CAMoMLKjie6_fYv7DvhunrWr1V26xQD-C%2BuDNUMx%3D%3DqpxzXRsOQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.