FAQ Database Discussion Community


Why do downloaded KB different in Firefox DevTools vs. Firebug or Chrome DevTools?

firebug,google-chrome-devtools,firefox-developer-tools
Can anyone explain me why, debugging on any page, I see always a great difference between the Firefox DevTools, Firebug and the Chrome DevTools in terms of transferred file sizes? For example, with the homepage of Stack Overflow I see: Chrome DevTools: 282 KB Firebug: 246 KB Firefox DevTools: 873...

What’s the quickest, easiest way to execute a JavaScript file on a live web page?

javascript,console,google-chrome-devtools,firefox-developer-tools
I have this JavaScript file URL: https://rawgit.com/Khan/tota11y/master/build/tota11y.min.js (hosted on GitHub and passed through RawGit), and I would like to inject it into a live web page via the browser’s console. In order to achieve that, I can dynamically create a <script> element and append it to the DOM: (function ()...

Can't find images associated with Mozilla Ghostwriter demo

javascript,firefox,canvas,firefox-developer-tools
I have kind of a weird question. I want to get the following demo up and running, then modify it: https://developer.mozilla.org/en-US/demos/detail/ghostwriter-art-studio/launch However, the source code is apparently outdated. So I went back to the demo itself and used the "save as" command to save the files to my computer. However,...

How do you close the DOM Properties window in Firefox Developer Edition?

firefox,firefox-developer-tools,firefox-developer-edition
I am using Firefox Developer Edition and when I had the Inspector open, which is accessed by right-clicking an item and selecting Inspect Element, I then right clicked something in the Inspector and selected Show DOM Properties, which you can see in the screenshot below: However I cannot figure out...

Profiler shows high cpu load in graphics, shows multiple sites?

javascript,firefox,firefox-developer-tools
Why does the Firefox Profiler show javascript from every tab? When profiling my own setup I saw a log of mostly graphics (green), mostly highlighted when I select a script from plus.google.com, and talkgadget.google.com, translate.google.com. I also saw stackoverflow on the profile, so apparently it's profiling all tabs? Why does...

What are the use cases for 3D view in Firefox Developer Tools

firefox,3d,web-inspector,firefox-developer-tools
I recently noticed the 3D mode in Firefox developer tools, in that you can see your page in a 3D view. We can rotate and re-orient the 3D view by dragging it. Could anyone give me the primary use cases where I would use 3D View? Sample 3D view:...

i have developed website and the issue is that same version of firefox shows different design on different computers while other browsers were fine?

css,firefox,firefox-developer-tools,html5-apps
i have developed this website http://www.falestinona.com/nashra the website tests on my laptop are correct and same design over IE, Chrome, FF and Opera the problem i have found that same version of firefox shows the design different on different computers. FF on my laptop shows correct design while same version...

PHP Logs in native console Firefox Developer

firefox-developer-tools,firefox-developer-edition
I highly prefer the firefox developer inspector than the firebug one. But is that possible to display PHP logs in the native JS console ? Thanks :)...

Why do my breakpoints flee from their intended position

firefox-developer-tools,firefox-developer-edition
I'm experiencing the behavior of breakpoints moving to the end of the file in Firefox Developer Edition when trying to set them anywhere in the java script. Sometimes, after PC restart or next day it's working again but I'm actually not sure whether some code leads to this issue or...

Live javascript edit & compile - Firefox Developer Edition

javascript,google-chrome,firefox,firefox-developer-tools,firefox-developer-edition
Firefox has recently released a new "Firefox Developer Edition" providing all development features natively. I always use chrome for my developer needs and thought of giving it a try. Searched through but found no way to edit javascript live & re-compile the script like in Chrome. Of course, there is...

Show Firefox OS devtools on Firefox Developer Edition 'desktop'

firefox,firefox-os,gecko,firefox-developer-tools,firefox-developer-edition
I've an iMac with OS X Yosemite v.10.10.3. I use Firefox Developer Edition 40.0a2. I've a ZTE Open C (FR version) with Firefox OS; Boot2Gecko 2.1.0.0-prerelease (B2G OS). What I'd like to do is the following: I've a basic webpage (mostyl HTML, CSS and JS) opened in my browser on...