Ever since I first fired up KDE on openSuSE, I’ve been in love. The KDE interface just swept me off my feet. But there’s always been one nagging thing. Firefox and Thunderbird stick out like two sore thumbs. They don’t look like KDE apps (see figure 1 and figure 4), they don’t work with KDE programs (like KPrinter), and they just don’t feel like they belong in KDE. Luckily, since both of these apps have support for add-ons, it is easy to remedy this.