URIs

Mozilla /SeaMonkey

Mozilla Firefox

Google Chrome

Chromium

Konqueror

Opera

Safari

Internet Explorer

MSN Explorer

about:

Shows version information and copyright information

Translated to “chrome://version”

Translated to “about:konqueror”

Translated to “opera:about”

Shows a blank page

about:about

Lists all the about: URIs
(Firefox since version 4.0)

Translated to “chrome://about”
Lists all the chrome: URIs
Works like “chrome://chrome-urls”

Translated to “about:konqueror”

Translated to “opera:about”

Shows nothing but the text:“about”

about:blank

Shows a blank HTML document

about:plugins

Shows the filename, MIME type, description, suffix, and status of all installed plug-ins

Translates to “chrome://plugins/”, works like Chrome

Shows the filename, MIME type, description, suffix, and status of all installed plug-ins

Translated to “opera:plugins”

about:cache

Shows information about the Cache Service.

Lists the URIs of pages stored within the cache, with each linking to view-cache:urithat provides more information about its content.

Translated to “chrome://cache”, works like Chrome

Translated to “about:konqueror”

Translated to “opera:cache”

about:mozilla

Shows a page from the fictional Book of Mozilla. In some versions of Netscape, also replaced the meteors in the standard Netscapethrobber with a large fire-breathing lizard.

Translated to “about:konqueror”

The Windows version of IE showed a blank HTML document with blue background color. Possibly a joke reference to the “Blue Screen of Death”. Removed in Windows XPSP2 but it can still be shown by typing “res://mshtml.dll/about.moz” instead.