Firefox browser has an "about pages" where you can config, view plugins, caches and even find an eastern egg in firefox. There's an interesting special
about:config area where you can adjust the browser's hidden settings.
You can adjust the browser's hidden settings.
View the size and contents of the data Firefox has saved to disk (about:cache?device=disk) or in memory (about:cache?device=memory).
See all the browser plugins (like Flash and Quicktime) you've got installed in Firefox.
Just a white page.
A passage from the Book of Mozilla.