About URI Scheme
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About URI Scheme
about is an internal URI scheme (also known as a " URL scheme" or, erroneously, "protocol") implemented in various Web browsers to reveal internal state and built-in functions. It is an IANA officially registered scheme, and is standardized. In early versions of Netscape, any URI beginning with about: that wasn't recognized as a built-in command would simply result in the text after the colon being displayed. Similarly, in early versions of Internet Explorer, about: followed by a string of HTML (e.g. about:<em>hello world</em>) would render that string as though it were the source of the page — thus providing a similar (though more limited) facility to the data: URI scheme defined by . Still other versions of Netscape would return various phrases in response to an unknown about URI, including "Whatchew talkin' 'bout, Willis?" (a catch phrase from the TV show ''Diff'rent Strokes'') or "Homey don't play dat!" (from a recurring skit on the TV show ''In Living Color'' ...
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URI Scheme
A Uniform Resource Identifier (URI) is a unique sequence of characters that identifies a logical or physical resource used by web technologies. URIs may be used to identify anything, including real-world objects, such as people and places, concepts, or information resources such as web pages and books. Some URIs provide a means of locating and retrieving information resources on a network (either on the Internet or on another private network, such as a computer filesystem or an Intranet); these are Uniform Resource Locators (URLs). A URL provides the location of the resource. A URI identifies the resource by name at the specified location or URL. Other URIs provide only a unique name, without a means of locating or retrieving the resource or information about it, these are Uniform Resource Names (URNs). The web technologies that use URIs are not limited to web browsers. URIs are used to identify anything described using the Resource Description Framework (RDF), for example, conce ...
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#REDIRECT Document type declaration #REDIRECT Document type declaration {{redirect category shell, {{R move{{R from other capitalisation{{R up ...
{{redirect category shell, {{R move{{R from other capitalisation{{R up ...
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Blue
Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The eye perceives blue when observing light with a dominant wavelength between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective. Blue has been an important colour in art and decoration since ancient times. The semi-precious stone lapis lazuli was used in ancient Egypt for jewellery and ornament and later, in the Renaissance, to make the pigment ultramarine, the most expensive of all pigments. In the ...
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Throbber
A throbber, also known as a loading icon, is an animated graphical control element used to show that a computer program is performing an action in the background (such as downloading content, conducting intensive calculations or communicating with an external device). In contrast to a progress bar, a throbber does not indicate how much of the action has been completed. Usually the throbber is found at the side of a program's toolbar or menu bar. Throbbers take various forms, but are commonly incorporated into the logo of the program. Throbbers are typically a still image (known as its resting frame), unless the program is performing an action, during which time the throbber is animated in a loop to convey to the user that the program is busy (and has not frozen). Once the action is complete, the throbber returns to its resting frame. It is normally possible for the user to continue interacting with the program while the throbber animated; one such possibility may be to press a ...
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The Book Of Mozilla
''The Book of Mozilla'' is a computer Easter egg found in the Netscape, Mozilla, SeaMonkey and Firefox series of web browsers. It is viewed by directing the browser to . There is no real book titled ''The Book of Mozilla''. However, apparent quotations hidden in Netscape and Mozilla give this impression by revealing passages in the style of apocalyptic literature, such as the Book of Revelation in the Bible. When is typed into the location bar, various versions of these browsers display a cryptic message in white text on a maroon background in the browser window. There are eight official verses of ''The Book of Mozilla'' which have been included in shipping releases, although various unofficial verses can be found on the Internet. All eight official verses have scriptural chapter and verse references, although these are actually references to important dates in the history of Netscape and Mozilla. The eight verses all refer to the activities of a fearsome-sounding "beast". ...
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MIME Type
A media type (also known as a MIME type) is a two-part identifier for file formats and format contents transmitted on the Internet. The Internet Assigned Numbers Authority, Internet Assigned Numbers Authority (IANA) is the official authority for the standardization and publication of these classifications. Media types were originally defined in Request for Comments (MIME) Part One: Format of Internet Message Bodies (Nov 1996) in November 1996 as a part of the ''MIME (Multipurpose Internet Mail Extensions)'' specification, for denoting type of email message content and attachments; hence the original name, ''MIME type''. Media types are also used by other internet protocols such as HTTP and document file formats such as HTML element, HTML, for similar purposes. Naming A media type consists of a ''type'' and a ''subtype'', which is further structured into a ''tree''. A media type can optionally define a ''suffix'' and ''parameters'': : As of November 1996, the registered types wer ...
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Firefox 57
Firefox was created by Dave Hyatt and Blake Ross as an experimental branch of the Mozilla browser, first released as Firefox 1.0 on November 9, 2004. Starting with version 5.0, a rapid release cycle was put into effect, resulting in a new major version release every six weeks. This was gradually accelerated further in late 2019, so that new major releases occur on four-week cycles starting in 2020. Current and future releases Current supported official releases :* Firefox 109.0 :* Firefox 102.7.0 ESR Current supported test releases :* Firefox 110.0 Developer Edition :* Firefox 110.0 Beta :* Firefox 111.0 Nightly Future official releases ;Rapid :* Firefox 110.0 :* Firefox 111.0 :* Firefox 112.0 :* Firefox 113.0 :* Firefox 114.0 :* Firefox 115.0 :* Firefox 116.0 :* Firefox 117.0 :* Firefox 118.0 :* Firefox 119.0 :* Firefox 120.0 :* Firefox 121.0 ;ESR :* Firefox 102.8 ESR :* Firefox 102.9 ESR :* Firefox 102.10 ESR :* Firefox 102.11 ESR :* Firefox 102.12 ESR ...
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Microsoft Edge
Microsoft Edge is a proprietary, cross-platform web browser created by Microsoft. It was first released in 2015 as part of Windows 10 and Xbox One and later ported to other platforms as a fork of Google's Chromium open-source project: Android and iOS, macOS, older Windows versions (Windows 7 and later), and most recently Linux. It was created as the successor to Internet Explorer (IE). Edge was initially built with Microsoft's own proprietary browser engine, EdgeHTML, and their Chakra JavaScript engine. In late 2018, it was announced that Edge would be completely rebuilt as a Chromium-based browser with Blink and V8 engines. The new Edge was publicly released in January 2020, and on Xbox platforms in 2021. Microsoft has since terminated security support for the original browser (now referred to as Microsoft Edge Legacy), and in Windows 11 it is the default web browser (for compatibility with Google Chrome). In May 2022, according to StatCounter, Microsoft Edge became the se ...
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Opera (web Browser)
Opera is a multi-platform web browser developed by its namesake company Opera. The browser is based on Chromium, but distinguishes itself from other Chromium-based browsers ( Chrome, Edge, etc.) through its user interface and other features. Opera was initially released on 10 April 1995, making it one of the oldest desktop web browsers still actively developed. It was commercial software for its first ten years and had its own proprietary layout engine, Presto. In 2013, it switched from the Presto engine to Chromium. Opera is available on Windows, macOS, Linux, Android, and iOS (Safari WebKit engine). There are also mobile versions called Opera Mobile and Opera Mini. Opera users also have access to Opera News, a news app based on an AI platform. The company released a gaming-oriented version of the browser, Opera GX, in 2019, and a blockchain-focused Opera Crypto Browser into public beta in January 2022. History In 1994, Jon Stephenson von Tetzchner and Geir Ivarsøy st ...
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Konqueror
Konqueror is a free and open-source web browser and file manager that provides web access and file-viewer functionality for file systems (such as local files, files on a remote FTP server and files in a disk image). It forms a core part of the KDE Software Compilation. Developed by volunteers, Konqueror can run on most Unix-like operating systems. The KDE community licenses and distributes Konqueror under GNU GPL-2.0-or-later. The name "Konqueror" echoes a colonization paradigm to reference the two primary competitors at the time of the browser's first release: "first comes the Navigator, then Explorer, and then the Konqueror". It also follows the KDE naming convention: the names of most KDE programs begin with the letter K. Konqueror first appeared with version 2 of KDE on October 23, 2000. It replaces its predecessor, KFM (KDE file manager). With the release of KDE 4, Dolphin replaced Konqueror as the default KDE file manager, but the KDE community continues to maintain ...
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Chromium (web Browser)
Chromium is a free and open-source web browser project, mainly developed and maintained by Google. This codebase provides the vast majority of code for the Google Chrome browser, which is proprietary software and has some additional features. The Chromium codebase is widely used. Microsoft Edge, Samsung Internet, Opera, and many other browsers are based on the Chromium code. Moreover, significant portions of the code are used by several app frameworks. Google does not provide an official stable version of the Chromium browser, but does provide official API keys for some features, such as speech to text and translation. Licensing Chromium is a free and open-source software project. The Google-authored portion is shared under the 3-clause BSD license. Third party dependencies are subject to a variety of licenses, including MIT, LGPL, Ms-PL, and an MPL/GPL/ LGPL tri-license. This licensing permits any party to build the codebase and share the resulting browser executa ...
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Mozilla Application Suite
The Mozilla Application Suite (originally known as Mozilla, marketed as the Mozilla Suite) is a discontinued cross-platform integrated Internet suite. Its development was initiated by Netscape Communications Corporation, before their acquisition by AOL. It was based on the source code of Netscape Communicator. The development was spearheaded by the Mozilla Organization from 1998 to 2003, and by the Mozilla Foundation from 2003 to 2006. The project has been superseded by the SeaMonkey Internet suite (SeaMonkey was the original code name for the project), a community-driven Internet suite that is based on the same source code, and continues to be developed with the newer Mozilla codebase. The Mozilla Suite was composed of several main programs: ''Navigator'' (a Web browser), ''Communicator'' (Mozilla Mail & Newsgroups), a Web page developer (Mozilla Composer), an IRC client (ChatZilla) and an electronic address book. Also included were tools to synchronize the application with PalmP ...
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