Firefox 4+ (Windows only): Usually, changing your Firefox browser’s looks requires a CSS tweak, an about:config switch or specialised downloads. Stratiform is an all-in-one add-on that offers a variety of button, toolbar and other visual element switches. Try out new themes and switch back without any hassle.
Android/Maemo: Android has a lot of great browser alternatives, but today Mozilla released the final version of Firefox 4 Mobile, which brings tabbed browsing, add-ons and serious synchronisation power to your phone.
If you have a multitouch trackpad, you may be used to zooming in and out of web pages in your browser. Unfortunately, Firefox 4 disables them by default. Here’s how to get them back.