"Quite successful" is perhaps an exaggeration. Most of the projects using XULRunner were directly related to the Mozilla project (forks of Mozilla Navigator and

"Quite successful" is perhaps an exaggeration. Most of the projects using XULRunner were directly related to the Mozilla project (forks of Mozilla Navigator and Composer, Thunderbird, Chatzilla, etc). There are very few projects which independently chose to use XULRunner. https://en.wikipedia.org/wiki/Category:Software_that_uses_XUL https://en.wikipedia.org/wiki/Category:Software_that_uses_XU...