Back in 2012, Mozilla launched Thimble, an online code editor for teaching the basics of HTML, CSS and JavaScript. Over time, though, things got pretty quiet around the project as other browser ...

With notifications in MDN Plus, subscribers get informed on all of the latest developments such as documentation changes, the launch of new CSS features and more after following a page.

Bug 290125 was first opened 18 years ago when Mozilla developers discovered that the open source browser was handling the ::first-letter CSS pseudo-element incorrectly.

Mozilla's vision for MDN is for it to become the "most comprehensive, complete, and trusted reference documenting the most important aspects of modern browsers and web standards." The product ...

Mozilla sought to provide users with better signposting of major sections, such as HTML, CSS, and JavaScript, as well as improved accessibility.