[RebeccaTheDev]

At my last job, when I first started there (this was circa around 2006), we actually used a Firefox browser plugin with a custom XUL interface to enable our writers to write content faster. It has a very complex UI, as complex as anything that could be found in the browser itself. Thousands of lines of XML and JS.

XUL was deeply unpleasant to use and maintain, and I do not miss it at all. We eventually ended up rewriting it as a standard webapp. It made the writers a bit slower, but they adapted eventually.