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This is yet another article in praise of a Firefox developer tools feature. Last week I was getting excited about the 3D mode, but today I’m equally uncontrollable over the responsive mode. Once again, if you don’t have the little icon on the right hand side of the developer tools header, you can hit the […]
If you haven’t checked out the native Firefox Developer Tools in a while, it is time to take another look – even if you are an avid Firebug fan. The native tools are nothing short of brilliant. The feature I’m going to highlight briefly is the 3D view. Once you get over the childish excitement […]
The battery status API is quite a special one. While on a basic level you can use it to get information on how long a battery has left, it is what you do with the information that makes it cool. For example, if you have a web app that performs polling in the background, grabbing […]
Update! In Firefox Quantum, the spinners were updated to Cylon-eyes. The TL;DR is that there are still two spinning states: Grey Cylon (equivalent to the old anti-clockwise grey spinner)… waiting for response Blue Cylon (quivalent to the old clockwise green spinner)… receiving the response The original article on spinners is below. If you are an […]
Please Note: If you are using a modern browser you’ll notice that the console is always present – so you’ll never see this problem again! As far as I’m aware, no browser still has a “Heisenberg Console”. This article was originally written for Firebug/Firefox in 2011 and the issue was gone by 2014. I can […]
The “about:” URI schema has been around since the days of Netscape, but there is more to it than the common “about:blank” reference for an empty page. Some of these options give you an advanced view over Firefox and its cache – and others a just a bit of entertainment. Here is a list of […]
Revised, July 2014. I have no idea what became of this product – I think it got rolled into a premium version of the Expression suite, but can’t find any references to it. Original article below… Microsoft have just released a really cool new tool for comparing websites in different versions of the Internet Explorer […]
Revised, July 2014 – Please see my update on dropping the HTML5 shim. Having managed to get the HTML5 website working in all the popular browsers, I ran a test on a larger number of browsers and operating systems with the following result: If you are running the latest version of any major browser – […]
If you’re developing a website and you’re wondering how Firefox caches the files, here’s a run down of the behaviour. I’ve spend some time researching this for a project I’m working on and the information is surprising, but very useful. What’s In The Cache In Firefox, you can see everything that has been cached by […]