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Hello Fenix!


Over seven years ago I made the massive career leap to Mozilla. Two years ago I realized a dream of joining the Firefox DevTools team — it’s been a rewarding adventure helping to improve the Firefox DevTools Debugger and other super helpful tools. I’m frightened, excited,...

Some Things You Oughta Know When Working with Viewport Units


David Chanin has a quickie article summarizing a problem with setting an element's height to 100vh in mobile browsers and then also positioning something on the bottom of that. Summarized in this graphic: The trouble is that Chrome isn't taking the address bar (browser chrome) into account when...

JavaScript waitForTime


I write a lot of tests for new features within Firefox DevTools. We have hundreds of “mochitests” which open the browser and perform synthetic actions like clicking, typing, and other user actions. I’ve previously written about waitForever which essentially halts following actions...

Simple Scraping API with zenscrape (Sponsored)


So many developers believe that scraping a URL’s content is easy — just a simple curl and you’re done, right? Nope. CAPTCHAs, rate limitations, origin-specific limitations — they make getting content off the web a nightmare. Luckily we now have services like zenscrape which...

5 Easy Ways to Earn Cryptocurrency


The days of individuals mining popular cryptocurrencies are over. The amount of time and energy required to mine bitcoin is immense and you’d be competing with business with massive mining farms. What you can do, however, is chip away at earning cryptocurrency via a few simple tasks that...

Billion Dollar Bitcoin Lawsuit Continues as Craig Wright Breaks Settlement


In early September, the high-profile court case Kleiman v. Wright looked as though it was coming to an end as the two parties reached a non-binding settlement. Then on October 30, without much notice, Wright explained that he couldn’t finance the settlement and the agreement was broken....

Netlify Build Plugins Announcement


Netlify just dropped a new thing: Build Plugins. (It's in beta, so you have to request access for now.) Here's my crack at explaining it, which is heavily informed from David Well's announcement video. You might think of Netlify as that service that makes it easy to sling up some static files from...

Facebook Likely to Use Stablecoins Pegged to Fiat for its Libra Project


Facebook’s Libra project has been abuzz with new updates quite frequently in recent times. According to the recent reports dated October 20, 2019, Facebook is contemplating to utilize stablecoins pegged to a national currency for its digital currency Libra. Talking at a banking seminar, Facebook’s...

How to Use JPEG 2000 (JP2) for a Faster Images on iPhone (Sponsored)


Images Slow Down Websites Images slow down the page-loading performance of many websites. Audit tools like Google’s Lighthouse can quickly tell you how many seconds you can save by optimizing your images. When you are delivering to desktops or android devices running Chrome browser, a quick...

CME Bitcoin Futures Sees Institutional Interest and Demand from Asia


Global markets business CME Group said that institutional interest toward the firm’s Bitcoin futures is thriving and 2019’s third-quarter data showed a record number of open interest. Moreover, despite the lackluster start, the Intercontinental Exchange’s (ICE) Bakkt platform...

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