I'm not sure I understand "console not work with network", but I assume
you got automatically switched to the Firefox DevTools, because Firebug
breaks in when multi-process Firefox is enabled (see https://hacks.mozilla.org/2016/12/firebug-lives-on-in-firefox-devtools/
for more info). And there you do not see network requests listed within
the Console panel. If that's the case, you need to set the related
filter option:
Firefox 50.1 (sorry, only have the German version):
Note that in Firefox 52+ the options are hidden behind a filter button:
If that's not what you mean, please explain a bit further and provide a screenshot of what you see.
Sebastian