Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Firefox developer edition - console.log dont work

  • 2 fhreagra
  • 2 leis an bhfadhb seo
  • 2 views
  • Freagra is déanaí ó guigs

more options

I cant use console.log function with my firefox developer edition.

When i use it inside file it wont work at all, nothing appears in console. When i paste this function into console directly, it returns only undefined.

I tried both of these things in regular firefox with firebug installed and it works ok.

I cant use console.log function with my firefox developer edition. When i use it inside file it wont work at all, nothing appears in console. When i paste this function into console directly, it returns only undefined. I tried both of these things in regular firefox with firebug installed and it works ok.

All Replies (2)

more options

Console.log() Works for me on Linux.

  • console.log("test");

Note that undefined means that this function call doesn't return a value.

  • (function(){x=5})()
  • (function(){x=5;return(x)})()

Does the same happen in the Browser Console (Firefox/Tools > Web Developer)?


Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window
more options

A quick way to run it is to use the Developer Toolbar: *https://developer.mozilla.org/en-US/d.../GCLI