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Questions tagged [firebug]

Firebug was a Firefox extension, which allowed the debugging, editing, and monitoring of any website's CSS, HTML, DOM, JavaScript, network traffic and cookies. You should just use this tag in case the question is directly related to Firebug itself and not a website you are debugging with Firebug.

Firebug was a Firefox extension that allowed the debugging, editing, and monitoring of any website's , , , and . It also had a JavaScript console for logging errors and executing JavaScript as well as a network monitor, which measured the amount of time in milliseconds it took to execute scripts and load images on the page. And it included a way to check and edit the cookies a website sets. Furthermore it had many extensions, which enhanced its functionality.

It became a must have aid tool for developers and testers around the world, but has now been discontinued by its developers.

Firebug is free and open source, licensed under the BSD license.

Relation to Firebug Lite

While Firebug was a Firefox extension, there is also a JavaScript bookmarklet called Firebug Lite, which works in all current browsers. It is also available as Chrome plugin. More info about Firebug Lite is available at the 'firebug-lite' tag page.

When to ask a Firebug question

The 'firebug' tag should just be used if your question is directly related to Firebug itself. You should not use it if your question is about some issue within your page and you use Firebug to debug it.

Before you're asking a question related to the usage of Firebug you should read its FAQ and documentation. If you experience a bug within Firebug, you should follow the steps described at the first aid page.

Useful links

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Get all anchor elements with jQuery from console?

I'm trying to execute some changes on ALL anchor tags. Unfortunately, things aren't going as planned. $('a').remove() This line only seems to affect the first element it encounters--- if I execute it in the console repeatedly, it progresses through…
temporary_user_name
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Get object name as string

Here is jQuery cloned object in console log. Marked text is what I would like to get as string Is that actual object name or something FireBug/jQuery has generated?
henrijs
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Prevent Firebug from Removing HTML Elements

I'm sure we've all done it by now. A website pops up some goofy JavaScript modal preventing you from continuing. You whip out Firebug, inspect it, and hit Delete. Poof! Gone. Now, is there a way with JavaScript to recreate the element or disable…
Gabriel Nahmias
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Why would HTML show up in view:source but not be displayed or rendered on the page?

What would cause an HTML table and form (viewable in view:source) not to render or appear on the page? It also does not appear in Chrome's Developer Tools console or Firebug console. I have been trying to figure this out all day and searching is not…
ryanwinchester
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How Can I Get the Arguments of Function Calls from the Firebug Profiler?

Firebug profiler outputs the functions called, but not the arguments/parameters of each function call. Is there any way to get those arguments? I've dug through the DOM tab for any of the given function calls that I know would have to have had some…
purefusion
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Firebug Breakpoint not captured in javascript

I have a valid break point in javascript, but the firebug is showing that as (?) left panel. Whats the error. However the code is working fine in jsfiddle. http://jsfiddle.net/kcEjN/ I have check and jquery is loaded correctly.
Muthu Ganapathy Nathan
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Using Firebug From Within a Firefox Extension's code

Does anyone know how I can use firebug from an overlay.js script in a Firefox extension? I'm on Snow Leopard (just in case it makes a difference). I'm developing an extension but it's taking me forever because I have no visibility into my javascript…
luisgo
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Why Firebug is not showing updated checked value in input using Uniform jQuery

One thing I noticed while using Uniform jQuery (http://uniformjs.com/#example): Open your Firebug and change radio buttons; you can see that it is adding a class in the tag. But the bad thing is that the radio button…
Neutro Solutions
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Web page request be aborted in Firefox

I have created a ASP.NET web application and host in IIS ,But there is a aborted message on firebug status column when access the web page .Why?
user441222
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firebug script debugger not showing current page javascript sometimes

When i load the page i want to debug. i click the firebug icon and firebug appears ok. i click the script tab and i am asked to "Reload to see all sources". I do the reload and most of the time i see the inline javascript and the html of the…
iqworks
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How can I get the method (or linenumber) where the value of a variable changed?

How can I get the method (or linenumber) where the value of a variable changed? My problem is, that I have a big part of a sourccode, where a value of a variable change. But I don't know where. (The source code isn't written by me) I've tried to…
ray
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TypeError: string is undefined (var c, p, i = 0, n = template.length, m = string.length;)

I am starting with this simple example but I have the following error (using Firebug) TypeError: string is undefined [Break On This Error] var c, p, i = 0, n = template.length, m = string.length; Any hint?? (I tried similar responses and it didn't…
lmblanes
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SyntaxError:" identifier starts immediately after numeric literal"

I'm getting that error being reported in firebug: data = data + "&network=" + rowdata.network + "&10xx=" + rowdata.10xx; can anyone help me how to fix this error.
arokia
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Which way to disable firebug in my website?

I want to disable firebug using on each my webpages. Sometimes , we embedded important keys or id in my ui widgets. Some of our methods from server side will takes these keys for processing. So , someone can edit by firebug. That may cause wrong…
Cataclysm
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Alternative for Dragonfly except Firebug

What is the alternative for Dragonfly except Firebug for opera? I am getting trouble in using dragonfly when I am offline and due to proxy settings I am unable to use Firebug.
Akshay Gundewar
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