There were no JavaScript on this page

[maxgag51]

Suddenly the javascript panel shows: There were no JavaScript on this page.
Windows 10 with firefox 50.0.2
What do I do?

[mrk1989]

On Windows 7, Firebug 2.0.18 and with firefox 50.0.2.
The panel Script get same error of maxgag51 also of this site!
The script not won't work

[iruy]

Downgrade Firefox to version 49

[maxgag51]

Thank you iruy.
I done and now all work

[mrk1989]

UPDATE:
Not work still with upgrade firefox in version 50.1.0
Now I use the version downupgrade 49

[iruy]

Firefox v49 is the last supported version. Then it should have been integrated in Firefox dev tools.