This probably isn't news to too many people, but the Firefox browser is the Web designer's and search engine optimizer's best friend.

First, a growing percentage of Web users are using the Firefox browser, so you'll need to begin to look at your Web desinged pages in both Internet Explorer and Firefox, also known as cross-browser compatibility.

Second, Firefox has a large number of programmer community-developed browser add-ons, many of which can help you with all your Web marketing and SEO tasks.

Furthermore, the Firefox browser and its add-ons will improve your overall Web browsing experience.

Here are just a few of the add-ons available:

RSS, News and Blogging
Web and Developer Tools
Downloading and File Management
Privacy and Security
Search Tools
Interface Customizations
Bookmarks
Site-specific
Language Support and Translation
Photos and Media
Social and Sharing
Web Data, Alerts, and Widgets
Miscellaneous