This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

I need help about using menu Tools/Developper functions like Inspector, Additive Design, Debugger, Simple JavaScript Editor, Stiles Editor etc.

  • 4 replies
  • 1 has this problem
  • 3 views
  • Last reply by cor-el

more options

In the later versions of firefox fow Windows (14 and later) the menu item Tools|Web designer gained a set of new fuctions except Error Console. I cannot find anywhere the description of how to use new functions listed in the question

In the later versions of firefox fow Windows (14 and later) the menu item Tools|Web designer gained a set of new fuctions except Error Console. I cannot find anywhere the description of how to use new functions listed in the question

All Replies (4)

more options

Hi,

This should get you started. Please also see Tools@MDN.

more options

Modified by philipp

more options

Thanka a lot! I helped.

more options

You can enable the error console by setting the related devtools.errorconsole.enabled pref to true on the about:config page.