I'm using various versions of firefox (Aurora and Nightly as well as 4.0.1) I also tried IE9 and Opera 11.10. All of which corrupt the widget when using https. Out of interest I tried SRWare Iron 11.0.700.1 and it displayed correctly. I ran all the tests on a clean install of windows with fresh profiles for the firefox builds. I cleared the cache using CCleaner and also manually, where necessary, between tests.