Downloaded and installed build shown below. Pages display fine, seems to work fine, but the browser window will not minimize. Clicking the Minimize button just makes the Window flash like it's minimizing, but it just stays where it is. Don't have this behavior with the OS/2 build.
Additional info. If there is (1) another browser window open, or (2) you have another application window open on your desktop, the browser window will minimize. But if you minimize the browser window, close the other open window or application, then bring up the browser window from the task bar, it will not minimize.
Marking as dupe of bug 120155. *** This bug has been marked as a duplicate of 120155 ***