Two days ago the Firefox porting team posted some screenshots of Firefox 17 ES.

It clearly says "This is a test build only, not everything works well so far, so please be patient and expect a beta release in a few weeks!"
Please keep in mind that Mozilla for OS/2 is a sponsored project. You can help it grow too. At this page you will find more information about the project strategy and about the ways how you can participate in financial support.