Mozilla axes heavyweight Firefox themes and tab groups
by from Techreport on (#VGQJ)
Back in August, Mozilla announced plans to adopt a Chrome-like extension framework for Firefox called WebExtensions. In turn, the company plans to deprecate its existing XUL and XPCOM plug-in APIs. These changes are part of a larger project to make Firefox a more modern browser. According to a couple of entries in Mozilla's Bugzilla tracker, some less popular features of Firefox are going to be retired as part of this project, too.
The first feature to hit the trashbin is support for "heavyweight" themes that rely on older add-on technologies. According to the Bugzilla entry for this change, themes that replace chrome packages (not to be confused with the Chrome browser) ...