More complex, Themes can be used to not only change the underlying image but also rearrange the buttons on the browser header and even add new ones. There are far fewer Themes than Personas from which to choose, but they offer a wider range of goals. The Full Flat theme, for example, simplifies the browser header, while Mythical Sirens Summer Night fills your screen with electric colors. For those who miss the browsers from the 1990s, you can have all of the latest HTML5 features Firefox has to offer in a nostalgiac, old-school wrapper.
Chrome can also be easily redesigned with the help of any of the hundreds of themes available from Google's Themes Gallery. (There are many third-party directories to choose from on the Web as well.) Tastes vary, and there are options to match. The architects Venturi, Scott and Brown, Mariah Carey's management team, and Donna Karan have all rolled their own.
Google's Theme Creation Guide shows how to build your own theme from a pile of images. Google's mechanism is much more involved than Firefox's simple Persona methodology, and you will need to edit hundreds of images to cover cases such as when the user invokes Incognito mode. Any good theme should shift to handle a wide variety of contingenices.
Step 3 to a better Web browser: Tailor the browser to suit your surfing habits
When you need to organize browser tabs with some intelligence, Personas and Themes just don't go far enough. For that, Firefox add-on developers offer more than 400 packages devoted to automating tabs. They've also developed more than 1,200 ways to add and customize toolbars, and nearly 1,000 more add-ons for fiddling with bookmarks. And then there's the thousand-plus packages devoted to the appearance of your browser. Many of these offer similar versions for browsers other than Firefox.
It's hard to summarize such a diverse collection. Many, such as ColorfulTabs, just add colors or cosmetic touches to organize the controls. Cooliris, as mentioned above, takes content and displays it on an infinite wall in three dimensions.
AmazonAssist, eBay Sidebar, and eBayBuddy show how developers are tuning browsers to particular merchants. In some cases, the developers of these plug-ins ask for donations; in others, they make money from affiliate fees.