| Here are the list of prefix about:... that you can play with your address bar. |
| about: | - | shows info on Firefox's version number, copyright, etc.; |
| about:config | - | reveals the Configuration Console, a repository brimming over with scores of customizable settings; |
| about:cache | - | displays a summary of both your memory and file cache, with a link to full file listings; |
| about:buildconfig | - | lists the compiler options that were used to create your version of Firefox (and, since it's open source, anyone can compile a customized version); |
| about: plugins | - | enumerates your installed add-ons, which can be quite numerous since Firefox is designed to be modular and extensible; and |
| about:credits | - | is an "Easter egg" that includes the names of hundreds of developers and testers who worked on the product. |
