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Shell Tutorials

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    Validate CSP from Command Line

    The content security policy spec has been an amazing front-end security tool to help prevent XSS and other types of attacks. I'd go as far to say that every site should implement as specific CSP as possible. If you aren't familiar with CSPs...

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    Mirror Android Device to Computer

    As I continue my adventure into Android development, pair programming has been a huge help in learning this new platform. When it's time to build and run the app, relying on the emulator is a fools' game -- the emulator is slow and it's hard to...

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    Firefox Kiosk Mode

    As someone who loves the HTML and web APIs, I want to see them used in all different types of devices and mediums. Being that I work for the amazing Mozilla Corporation, seeing Firefox and the gecko web engine thrive in those spaces is important...

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    How to Create a QR Code

    QR codes aren't everyone's cup of tea but I quite like them. If I see something I want to remember or check out later, especially when on the road, it's super easy to take a quick picture -- it's much easier than trying to remember a...

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    Stop Installing Packages Globally

    These days, most front-end projects are going to involve NPM packages of some kind. Occasionally, when browsing documentation for these packages, I’ll see a recommendation to install a package like this.Or like this.In both of these examples, the package is installed globally. This means you can...

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    How to Build Firefox

    Open source is a dream and a gateway to an amazing career -- I'm a testament to that. One of the most amazing open source projects to ever exist, Mozilla Firefox, is a project I'm proud to work on as an employee of Mozilla. It's rewarding...

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    Mercurial Tips

    While most of the world seems to be using git for version control, Mozilla continues to use Mercurial (hg) to manage the Firefox source code. As a git and GitHub lover, it took me a while to get used to Mercurial. I...

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    How to Crop Videos

    During a recent episode of the Script and Style podcast, I had noticed that the video recording had showed a bit of our internal chat that wasn't necessary for our viewers to see. While there's nothing wrong with giving viewers a peek into the show...

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    Fix Touch Bar Volume Buttons

    The touch bar on MacBooks has been a source of controversy since the beginning. Many mourned the loss of the escape key, while others refused to buy a new laptop to avoid the touch bar completely. I’ve not had many issues with the touch...

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    Checkout the Last Public Revision with Mercurial

    I've always preferred git over Mercurial (hg) because the feature branch workflow makes organizing code and working off of master very easy. You don't get that with vanilla mercurial -- instead, commits can just sort of apply on top of each other, without much organization.