The console panel offers a JavaScript command line, lists all kinds of messages and offers a profiler for JavaScript commands.

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Contents  [hide] 1 Options Menu 2 Panel Toolbar 2.1 Break On All Errors 2.2 Clear 2.3 Persist 2.4 Profile 2.5 Filter buttons 3 Command Line 3.1 Command Editor 3.2 Smart paste 4 Console 4.1 Click functionality 4.2 Profiling 5 See also

[edit]Options Menu

This menu is reachable via the little arrow in the panel tab (  ) or by right-clicking on on the panel tab (since Firebug 1.9).

Option	Preference	Description
Enabled	extensions.firebug.console.enableSites	Enables the Console Panel
Disabled	extensions.firebug.console.enableSites	Disables the Console Panel
Show JavaScript Errors	extensions.firebug.showJSErrors	Toggles logging of JavaScript error messages into the console
Show JavaScript Warnings	extensions.firebug.showJSWarnings	Toggles logging of JavaScript warning messages into the console
Show CSS Errors	extensions.firebug.showCSSErrors	Toggles logging of CSS error messages into the console
Show XML/HTML Errors	extensions.firebug.showXMLErrors	Toggles logging of XML and HTML error messages into the console
Show XMLHttpRequests	extensions.firebug.showXMLHttpRequests	Toggles logging of XMLHttpRequests into the console; see the Net Panel for more info
Show Chrome Errors	extensions.firebug.showChromeErrors	Toggles logging of program and add-on internal error messages into the console
Show Chrome Messages	extensions.firebug.showChromeMessages	Toggles logging of program and add-on internal messages into the console
Show External Errors	extensions.firebug.showExternalErrors	Toggles logging of external error messages into the console
Show Network Errors	extensions.firebug.showNetworkErrors	Toggles logging of network error messages into the console
Show Stack Trace With Errors	extensions.firebug.service.showStackTrace	Toggles the inclusion of the stack trace for error messages
Show Cookie Events	extensions.firebug.cookies.logEvents	Toggles logging of cookie events into the console; see the Cookies Panel for more info
Strict Warnings (performance penalty)	javascript.options.strict	Toggles logging of strict warnings into the console
Command Editor	extensions.firebug.commandEditor	Toggles between the Command Line and the Command Editor
Show Completion List Popup	extensions.firebug.commandLineShowCompleterPopup	Toggles the auto-completion of commands while typing

For more info about tweaks available in Firebug please see the full list of preferences.

[edit]Panel Toolbar

[edit]Break On All Errors

As with some of the other panels the console panel offers a "Break On ..." feature. In this case it's "Break On All Errors" (  ), which means that as soon as an error occurs the script execution is stopped.

[edit]Clear

Clears the console by removing all messages from the output.

[edit]Persist

This option prevents clearing the console when a page is reloaded. Thus all messages will stay inside the console as long as this option is enabled.

[edit]Profile

Enabling this option lets you profile JavaScript activity. For more info about this feature see the Profiling section.

[edit]Filter buttons

There are different buttons allowing you to filter the display of messages logged to the console:

Option	Description
All	Displays all messages
Errors	Limits the display to error messages
Warnings	Limits the display to warning messages
Info	Limits the display to info messages
Debug Info	Limits the display to debug info messages
Cookies	Limits the display to cookie events

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