Please see my answer at Stack Overflow <http://stackoverflow.com/a/40885076/432681>. In short, it's a known issue, though Firebug is not maintained anymore and you are advised to use the Firefox DevTools <https://developer.mozilla.org/en-US/docs/Tools> instead.
Sebastian On Thursday, December 1, 2016 at 2:01:05 PM UTC+1, Mehul Gohel wrote: > > I am facing the same issue > > On Thursday, December 1, 2016 at 5:35:33 PM UTC+5:30, Eric Dorothy wrote: >> >> I'm having a problem where I can't debug JavaScript anymore after Firefox >> updated to version 50.0.1. >> >> >> <https://lh3.googleusercontent.com/--SqASpPo-nI/WD8Sm1rccHI/AAAAAAAALcA/BHq2aQzErgQ91m81oymT1cBuS2TfoIaeQCLcB/s1600/Html%2BCapture.PNG> >> >> As you can see I have some pretty obvious JavaScript use here. >> >> >> <https://lh3.googleusercontent.com/-StWkzVaUd0k/WD8TEuWLlZI/AAAAAAAALcE/u7Cg3CJ43BsiO-paYBQ4YMbtMETa4mX8QCLcB/s1600/No%2BJavascript%2BCapture.PNG> >> >> >> I've tried disabling and re-enabling the Firebug plug-in but it does not >> help. Does anyone have any information that may help? >> >> >> >> -- 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/464bbd37-9aa3-4227-996a-538c1c821f26%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.