In my case, winebrowser works. In Wine'd applications when I click on some url, a tab open in Firefox. That is the good part. But, this one application (which is the one I report about on this thread) doesn't do so with the newer versions of Wine (as reported in the first post). Seems most likely that it tries to open an MSHTML page, so now the Gecko IE pops up. (This app automatically opens the url on the first run of everyday.) But I am really confused why a few versions earlier of Wine still sent the page to my Firefox. There is no change on my settings. As a matter of fact, if I revert to the earlier version of Wine, it still behaves the same. The new versions somehow have something different. Can someone confirm if I can disable Gecko for MSHTML in the registry and have it use winebrowser instead?