Another thing to check: make sure you're looking at the Web Console <https://developer.mozilla.org/en-US/docs/Tools/Web_Console> and not the Browser Console <https://developer.mozilla.org/en-US/docs/Tools/Browser_Console>. They're similar looking but have different purposes. (The links are to the documentation for them.)
Also you may have to refresh the web page in order to repopulate the Console. I just discovered that it's not necessary to switch focus back to the web page -- the same "refresh" command can be used when the Console has focus. (Command-R on my Mac, so I assume Control-R on Windows.) -- 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 firstname.lastname@example.org. 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/CAMoMLKhM%3DdN4L7%3D6NaYNvXa3OxPdgL37keTMc3jNv9ghqv51uw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.