OmniWeb works with some sites that Firefox can't handle. Although I tend to attribute the glitches to the site, it is helpful to have a browser that can handle the scripts. Speed is also very good now. The tabbed browsing is a different approach, but it works. I wish it didn't take up so much room on the side. On the minus side, I find a few properly configured CSS-based sites that are not rendered correctly. Weighing script handling against CSS-rendering, I'm keeping a Mozilla-based browser for my default, but I keep Omni handy to use when needed, and I'm keeping an open mind about the future.