Why I Switched From Firefox to Brave After 21 Years
I have been an avid Firefox user since 2000 (back then it was called Netscape). I love Mozilla and all that it stands for. 13 years back I…
Ramblings of a Madman
General Ramblings About all things JavaScript and Browser Developer Tools
Latest posts
Installing Debian Flavours on a USB Stick For Use on a MacBook Pro and PC
Before I begin let me just say that these instructions worked for me but if you break or lose anything then I am not responsible. I recently…
Checking Out and Building Chrome Developer Tools (OSX Version)
After almost 9 years at Mozilla I have suddenly found myself in a place where I have plenty of time to experiment. One thing that I have…
Running ESLint in Atom for Mozilla Development
Due to some recent changes in the way that we use eslint to check that our coding style linting Mozilla source code in Atom has been broken…
Installing VPN from the Linux Command Line
To stop people snooping on what we are doing on the internet or when restrictive governments prevent people from accessing popular websites…
View jQuery and jQuery Live events in Firefox DevTools
A little while back we landed a feature that made it possible to interact with events from the markup panel of Firefox developer tools. A…
View DOM Events in Firefox Developer Tools
I recently realized that support for inspection of DOM events is very poor in pretty much all developer tools. Having seen Opera Dragonflies…
Hack your Family: Adopt a child (UK version)
A lot of people would like to adopt but do not know what to do or what is involved. They are often scared of the process or have heard…
Firefox Developer Tools Highlighter
When it comes to the Firefox Developer Tools Inspector one of our most common requests is that our highlighter should support box model…
Debugging Thunderbird Using Firefox Developer Tools
I recently discovered that it is possible to use Firefox Developer Tools with Thunderbird. Philipp Kewisch has done a fantastic job of his…
The History of Firebug
When Joe Hewitt was seven years old his father wanted to become a computer programmer so he bought an IBM PCjr. Joe would often watch his…
Why it is Awesome to Work for Mozilla?
Since my post about what it is like to work as an engineer at Mozilla lots of people have asked about why I chose to work for Mozilla. I had…
Bugzilla Tips, Hacks and Etiquette
Even after a few years working for Mozilla I still occasionally come across a Bugzilla tip that I don't know about. This post is a attempt…
Disable JavaScript option now available in Firefox Developer Tools
At the beginning of April Alex Limi decided that we should remove the Enable JavaScript checkbox from Firefox's preferences dialog. His…
The Application Cache is no longer a Douchebag
If you have ever used the application cache you will probably be familiar with how easy it is to break offline functionality and how…
Moving your Contacts and Calendar Away from Google
For the past few years I have used Google Contacts to store my contacts and Google Calendar to store my calendars. These services really are…
How to install Django on JustHost (and maybe other shared hosts)
If you search Google for "how to install Django on JustHost" you may be surprised to find tens of thousands of articles claiming that it can…
Firefox DevTools API
Hopefully, most of you are familiar with Firefox Developer Tools by now, if not then now is the time to get familiar! The DevTools Team…
How well does your browser protect your privacy?
Having downsized my home a couple of times in the last year it is no understatement to say I have urgent space issues. I have power tools…
What is it like to work as an engineer at Mozilla?
This question popped up on Quora recently. I have been working on the Developer Tools Team at Mozilla for over a year now and would love to…
What is SOPA and why should you care?
I have received a flood of emails today from people asking about what SOPA is and was surprised when I looked online and didn't see any…
How Browsers Work
Preface Introduction The Browsers We Will Talk About The Browser's Main Functionality The Browser's High Level Structure Communication…
New job at Mozilla
Okay, I have had the job now for over 3 months but I have really been neglecting my blog... after all, you all deserve to know about what we…
Firefox 4, Not Just Another Version Number!
So, it has been a long time coming, but I am sure that once you have experienced the awesome that the Mozilla developers have produced you…
Firebug Inspector Improvements
Almost a year since I last posted, I can't believe it. I am no longer spending time working on Firebug Lite, but am spending my spare time…
Firebug Lite - Changes Q4 2008 - Q1 2009
We have made a bunch of changes to Firebug Lite over the last few months and it is about time we shared them with you. For those that don't…