The console api isn't really linked to chrome. I prefer the chrome debugging tool but those things should work on firefox too. I think you could be clearer on this point.
In IE the 'console' object doesn't even exist if the developer tools aren't displayed, so if you use "console.log" in your program, your js will just throw an NPE.
Note that if you try closing the Developer Tools, 'console' is still declared for this page and all descendant pages. To test 'console.log' you need to avoid opening the devtools and open a new tabs.
A linter will catch this.