Brian Grinstead

This is the sixth edition of the XUL/XBL Replacement Newsletter. A quick note before starting: in addition to the ongoing XBL work, there's been notable progress on other XUL projects. All of this work is interrelated enough that I think it makes sense to talk about it together, so I've updated the title to reflect that.

This is the fifth edition of the XBL Replacement Newsletter. Since the last update we've moved below 200 bindings, so we've removed just over one third of the bindings. We've also been making progress on in-content bindings and doing some cleanup that's been enabled by the work so far. The easiest way to follow along with this work is to watch the main meta bug.

This is the fourth edition of the XBL Replacement Newsletter. Since the last update we've continued to remove bindings and have been making progress on accessibility, autocomplete widgets, and migrating XBL to JS. The easiest way to follow along with this work is to watch the main meta bug.

This is the third edition of the XBL Replacement Newsletter. Since the last update, we’ve removed 27 bindings and have been preparing to migrate bindings to Custom Elements.

This is the second edition of the XBL Replacement Newsletter. Since the last update, we’ve continued to remove unused or unnecessary bindings and improved tooling to make it easier to keep track of the work and to help find candidates for removal.

This is the first edition of the XBL Replacement Newsletter. First, as a reminder about the project: we are planning to replace XBL in Firefox (see this blog post for more details). There are 4 main focus areas for the project this quarter, so I’ll have a quick update on each:

XBL (XML Binding Language) is a markup language used to define appearance and behavior for UI components in Firefox. The implementation of XBL and the set of implemented bindings are deeply ingrained into Firefox, and it's been an influence for Web Components specs like Shadow DOM.

User agent styles refer to the styles loaded by the default stylesheets within a browser. Firefox has some basic style rules that get applied to every page - for instance, links are blue and

We (Nicole, Aaron, and I) have had a lot of fun doing Node Knockout the past few years. Last year (in 2012), our team got first place in the 'Completeness' category for our app asciigram, which converted a webcam stream into ASCII art.

Heather and I spent some of our @FirefoxDevTools team meetup working together on an experiment we named the Pixel Inspector. The idea is to focus on an individual region of the page with an eyedropper to pick colors and a zoom feature to debug tricky alignment issues. You can get separate programs that do some of this, such as Digital Color Meter, or addons like ColorZilla, but it would be great to have something built into the developer tools to do this. Here is how it works: