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Mozilla Firefox

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Firefox redirects here. For other uses, see Firefox (disambiguation).
Mozilla Firefox
Mozilla Firefox 1.0 features a "latest headlines" Live Bookmarks feed out of the box.
Developer Mozilla Foundation
Latest release 1.0.4 / May 11, 2005
OS Cross-platform
Genre Web browser
License MPL, MPL/GPL/LGPL tri-license
Website www.mozilla.org

Mozilla Firefox (originally known as Phoenix and briefly as Mozilla Firebird) is a free, cross-platform, graphical web browser developed by the Mozilla Foundation and hundreds of volunteers [1]. Before its 1.0 release on November 9, 2004, Firefox had already garnered a great deal of acclaim from numerous media outlets, including Forbes [2] and the Wall Street Journal [3]. With over 25 million downloads in the 99 days after its release, Firefox became one of the most-used free and open source applications, especially among home users [4]. The 50 millionth download of Firefox occurred on April 29, 2005 (about 6 months after the 1.0 release).

With Firefox, the Mozilla Foundation aims to develop a lightweight, fast, intuitive, and highly extensible standalone browser based on the Navigator component of the Mozilla Suite. Firefox has become the foundation's main development focus (along with its Thunderbird email client), and has replaced the Mozilla Suite as their official main software release.

Features of Firefox include the integrated pop-up blocker, tabbed browsing, live bookmarks, support for open standards, and an extension mechanism for adding functionality. Although other browsers have offerred these features for some time, Firefox became the first browser with such features to achieve large-scale adoption.

As of April 2005, the estimate of Firefox usage share ranges between 8% and 10% (see below). Supporters believe that Firefox would reduce Microsoft Internet Explorer's dominant usage share, and even re-ignite the browser wars.

Firefox has attracted attention as an alternative to Internet Explorer, which has come under criticism for its insecurity and alleged poor program design — detractors cite Internet Explorer's incomplete support for web standards, use of the potentially dangerous ActiveX component, vulnerability to spyware and malware installations, and a deficient feature set. [5]

Table of contents

History

Main article: History of Mozilla Firefox

Dave Hyatt and Blake Ross began working on the Firefox project as an experimental branch of the Mozilla project, perceiving the Mozilla browser as overly compromised by the commercial requirements of Netscape's sponsorship, as well as by developer-driven feature creep. The pared-down browser (then known as Phoenix) aimed to combat the perceived software bloat of the Mozilla Suite (codenamed and internally referred to as Seamonkey), which integrated several features in one suite of software. Ben Goodger currently works as the lead developer of Firefox.

Mozilla Firefox retains the cross-platform nature of the original Mozilla browser, using the XUL user interface markup language. The use of XUL makes it possible to extend the browser's capabilities through the use of themes and extensions. However, the development and installation processes of these add-ons raised security concerns, and with the release of Firefox 0.9, the Mozilla Foundation opened a Mozilla Update website containing "approved" themes and extensions. Use of XUL also sets Firefox apart from other projects based on Mozilla's Gecko layout engine, which use interfaces native to their respective platforms.

MozillaZine, a website with news, forums and weblogs for Mozilla-related topics, hosts the official discussion forum for Mozilla Firefox. A group of individuals unaffiliated with the Mozilla Foundation runs MozillaZine.

The Firefox designers intended to replace the Mozilla Suite for end users. The Mozilla Foundation had intended to make the Mozilla Suite obsolete and to replace it with Firefox. On March 10, 2005, the Foundation announced that official releases will cease with the 1.7.x series. It continues to maintain the 1.7.x branch because of its continued use by many corporate users, and because of its bundling with other software. The community (as opposed to the Foundation) will release Version 1.8, which will no longer use the Mozilla Suite name. The new name, though already chosen, awaits legal clearance before its announcement. The Mozilla Foundation will keep giving support (such as web hosting and CVS server) for the community developers.

Naming

The project which became Firefox started as an experimental branch of the Mozilla Suite called m/b (or mozilla/browser). When sufficiently developed, binaries for public testing appeared in September 2002 under the name Phoenix.

The Phoenix name survived until April 14, 2003, when it changed due to trademark issues with the BIOS manufacturer, Phoenix Technologies (who produce a BIOS-based browser). The new name, Firebird, met with mixed reactions, particularly as the free database software Firebird used the same name. In late April, following an apparent name-change to Firebird browser for a few hours, the Mozilla Foundation stated that the browser should always bear the name Mozilla Firebird in order to avoid confusion with the Firebird database server. However, continuing pressure from the FLOSS community forced another change, and on February 9, 2004, Mozilla Firebird became Mozilla Firefox (or Firefox for short).

The Mozilla Foundation chose the name "Firefox", for its similarity to "Firebird", but also for its uniqueness in the computing industry. To avoid any potential further name changes, the Mozilla Foundation began the process of registering Firefox as a trademark with the United States Patent and Trademark Office in December 2003 [6]. As the trademark had already been registered in the United Kingdom, the Mozilla Foundation licensed it from the trademark's owner.

Branding and visual identity

One of the most visible enhancements is the new visual identity of Firefox and Thunderbird. It is often argued that free software frequently suffers from poor icon and user interface design, and a lack of a strong visual identity. The early Firebird and Phoenix releases of Firefox were considered to have had reasonable visual designs, but were not up to the same standard as many professionally released software packages. The release of Firefox 0.8 in February 2004 saw the introduction of the new branding efforts, including new icons. The icon for Firefox 0.8 and up is designed by Jon Hicks.

The animal shown in the logo is a stylized fox, although "firefox" is considered to be a common name for the red panda, which was avoided since a panda didn't convey the appropriate image, according to one of the developers. Also, the logo was chosen for the purpose of making an impression, while still not "shouting" with overdone artwork.

The Firefox icon is a trademark used to designate the official Mozilla build of the Firefox software. Although the core software is open source, the artwork is not freely licensed. For this reason, software distributors who distribute patched or modified versions of Firefox are disallowed from using the icon.

Release history

From the first release of Phoenix on September 23, 2002, Firefox has improved dramatically. As new releases came along, more features were added, some replacing others. Occasionally conflicts would arise, when, for example, the traditional Qute theme introduced in version 0.6 was replaced in 0.9. Pre-1.0 releases were also prone to issues with extensions, as the code handling them was altered from version to version. Eventually, Firefox 1.0 was released on November 9, 2004, and followed up by a 1.0.1 release on February 24, 2005, containing some minor security and stability fixes. Version 1.0.2 was released shortly after on March 23, 2005 with more security updates. Version 1.0.3 was also released shortly afterward on April 15, 2005 with security updates. Version 1.0.4 was released about a month later on May 11, 2005, including several security fixes and a fix to DHTML regression.

Throughout its development, Firefox versions have had internal codenames. These are based after real locations, with codenames such as Three Kings, Royal Oak, One Tree Hill, Mission Bay, and Greenlane, which are all suburbs in Auckland, New Zealand and Whangamata which is a small seaside town in the Coromandel Peninsula in New Zealand. The codenames were chosen from these suburb names by Ben Goodger, who grew up in Auckland. The other codenames included in the Firefox roadmap are derived from an actual roadmap of a journey through California to Phoenix, Arizona [7]

According to Ben Goodger, "Deer Park is not Deer Park, Victoria, but just a symbolic name. I was riding LIRR a few weeks ago and saw the name go by and I thought it sounded nice". Therefore, this is likely a reference to Deer Park, New York, a CDP on Long Island.

Future development

The next planned release is Firefox 1.1, which is targeted for June 2005, which will resync the code-base of the release builds (as opposed to nightly builds) with the core "trunk" which contains additional features not available in 1.0, as it branched from the trunk around the 0.9 release. As such, there has been a backlog of bug fixes between 0.9 and the release of 1.0, which will be made available in 1.1. Version 1.1 will also implement a new Mac-like option interface, which has been the subject of much critisism from Windows and Linux users, with a "Sanitize" action to allow a person to clear their privacy related information without manually clicking the "Clear All" button. A user can clear all privacy related settings simply by exiting the browser or using a keyboard shortcut, depending on their settings. [8] Moreover, the Software Update System will be improved (with binary patch possible) [9]. There will also be improvements in the Extension management system [10]. Also, it is expected to have (partial) SVG 1.1 support, as shown in Mozilla's Bugzilla database and the latest nightlies [11]. This unplanned movement may be due to the release of Opera 8.0 on April 19, 2005, which supports SVG Tiny.

According to the roadmap, future Firefox development will be split over three milestones: version 1.1, version 1.5 and version 2.0. Development for these releases will take place on the Mozilla trunk, with a release coming off a branch [12].

Likely goals for Firefox include [13]:

  • New "Places" interface for Bookmark and History
  • Tabbed Browsing improvements
  • Specific options per-site
  • Extension system enhancements
  • Find Toolbar, Software Update, Search enhancements
  • Accessibility compliance
  • Download resuming, detection of signed executables

Features

Main article: Features of Mozilla Firefox

Firefox aims at a browser that "just works" for most casual users. Additional features, if needed, are often available via extensions and plugins.

Usability and accessibility

Screenshot of performing "Find as you type". "ency" was being typed and the first matched text was highlighted in green.

A large amount of work has been done in simplifying Firefox's user interface. As a result, the user interface is less cluttered than many of the internet suites like Mozilla and Opera. The option panels have been redesigned so that many infrequently used options found in the Mozilla Suite are no longer visible in Firefox.

Firefox supports tabbed browsing, which allows users to open multiple pages in the same window. This feature was carried over from the Mozilla Suite, which in turn had borrowed the feature from the popular MultiZilla extension for SeaMonkey. It is also one of the early browsers that integrated customizable pop-up blocking.

The browser has a number of features that helps finding information. It has an incremental find feature known as "find as you type". When a user types a word while on a web page, Firefox will automatically search for it in the page and highlight the first instance found. There is also a built-in search toolbar with extensible search engine listing. By default, Firefox includes engines for Google, Yahoo!, Amazon.com, Creative Commons, Dictionary.com, and eBay. More search plugins can be found in the Mycroft project (including one for Wikipedia). On another hand, the custom keyword feature in the Mozilla Suite is still available in Firefox. This feature allows user access the bookmarks from the location bar using keyword (and an optional query parameter), e.g. "google abc".

Customizability

A typical XPInstall confirmation dialog

An oft-touted feature of Firefox is its extensibility. Extensions allow the addition of new features such as mouse gestures, advertisement blocking, proxy server switcher, debugger tools, and others through the installation of XPInstall modules. Many former Mozilla features such as IRC chat (ChatZilla), calendar, etc. have become extensions.

The extension system can be viewed as a ground for experiment where new functionalities are being tested. From time to time an extension would be pulled back into the project and made part of the product, e.g. MultiZilla.

Firefox also supports a variety of themes/skins for changing its appearance. Themes are simply packages of CSS and image files. Many themes can be downloaded from the Mozilla Update web site.

All extensions and themes available on the Mozilla Update site may be upgraded through the browser interface itself. Mozilla Update also allows users to update Firefox without browsing the Mozilla Foundation's website.

Firefox's toolbars and interface are customizable. Users can move and manipulate the various buttons, fields, and menus on the toolbars, and also add new toolbars or delete existing ones. Additionally, Firefox stores many hidden preferences that are accessed by typing about:config in the address bar. This is used to enable features such as single-window mode and error-pages, or to speed up page rendering by various tweaks. Experimental features like HTTP pipelining are often hidden in the about:config menu.

Standards support

The Mozilla Foundation takes pride in Firefox's compliance with existing standards, including W3C web standards. Firefox has extensive support for most basic standards including HTML, XML, XHTML, CSS, JavaScript, DOM, MathML, XSL and XPath.

It also supports PNG images and variable transparency, something Internet Explorer will not do fully until version 7 (which is not yet released) [14]. Indeed, Internet Explorer's lack of support for PNG images has been the subject of much debate, as many web developers want to move away from the old GIF format, which does not have the same capabilities and image quality as PNG. GIF was also patent-encumbered until recently.

Mozilla contributors are constantly improving Firefox's support for existing standards. Most of CSS Level 2 and some of the not-yet-completed CSS Level 3 standard have already been implemented in Firefox. Also, work is being done on implementing standards that are currently missing, including SVG, APNG, and XForms. The latest Firefox nightlies are built with SVG, but disabled by default [15]. It is expected to have partial SVG 1.1 support, as shown in the SVG status page.

Cross-platform support

Mozilla Firefox runs on a wide variety of platforms. Releases available on the primary distribution site support the following operating systems [16]:

Mozilla Firefox installation on Windows 95 is unsupported, but is reported to work after performing a few additional steps [17].

Since the source code is available, it can also be compiled and run on a variety of other architectures and operating systems. Thus, Firefox is also available for many other systems. This includes Solaris (x86 and SPARC), OS/2, AIX [18], and FreeBSD [19]. Builds for Windows XP Professional x64 Edition are also available [20].

Firefox uses the same profile format on the different platforms, so a profile may be used on multiple platforms, if all of the platforms can access the same profile (e.g., profile stored on a FAT32 partition accessible from both Windows and Linux). This is useful for users who dual-boot their machines. However, it may cause a few problems, especially with extensions.

Internationalization and localization

With contributors all over the world, the browser is translated into at least 36 languages/locales, covering some of the least supported locales, such as Chichewa. Because of the use of DTD and property files for storing the string literals, part of the internationalization and localization job can be done easily by anyone without programming background, using simply a text editor.

Web development tools

DOM Inspector inspecting Wikipedia's main page

Like the Mozilla Suite, Firefox comes with 2 web development tools: DOM Inspector and JavaScript Console, which are more helpful in doing web development. The DOM Inspector is not available in any other browser; and the JavaScript Console is more advanced than that in other browsers. While not installed by default, they are available in "custom" install.

Other features

Powered by RSS or Atom feeds, "Live Bookmarks", another feature of Firefox, allow users to dynamically monitor changes to their favorite news sources. When this feature was first introduced in version 1.0 PR, there were a few worries that Firefox was beginning to include non-essential features and that it was beginning to bloat the browser much like the Mozilla Suite. However, these worries have largely abated.

An integrated customizable download manager is also included. Downloads can be opened automatically depending on the file type, or saved directly to disk. By default, Firefox downloads all files to a user's desktop on Windows or to the user's home directory on Linux, but it can be configured to prompt for a specific download location.

Security

Firefox was designed with security in mind. Some of the key features include the use of the sandbox security model, same origin policy and external protocol whitelisting [21].

One key characteristic of Firefox security is that its source code is visible to everyone. Proposed software changes are reviewed by at least one other person, and typically "super-reviewed" by yet another, and once placed in the software is visible for anyone else to consider, protest, or improve [22].

In addition, the Mozilla Foundation operates a "bug bounty" scheme: people who report a valid critical security bug receive a $500 (US) cash reward (for each report) and a Mozilla T-shirt [23]. The purpose of this "bug bounty" system is, according to the Mozilla Foundation, to "encourage more people to find and report security bugs in our products, so that we can make our products even more secure than they already are" [24]. Note that anyone in the world can report a bug. Also, access to the source code of Mozilla Firefox, internal design documentation, forum discussions, and other materials that can aid in finding bugs is available to anyone.

The Mozilla Foundation has issued a security bugs policy to help contributors to deal with security vulnerabilities [25]. Basically, access to the security-related bug report is restricted to members of the security team. This is for the good of the product and its community, as publicly known vulnerabilities would lead to active exploits.

However, the bug bounty does not always succeed in maintaining the secrecy of Firefox vulnerabilities. On May 8, 2005, two serious security issues (and their proofs of concept) that allow arbitrary code execution had been leaked onto the Internet. The vulnerability was originally discovered by Paul of Greyhats Security Group and Michael "mikx" Krax. Paul and mikx reported the vulnerability to the Mozilla Foundation and bug 292691 was filed on Monday (May 2, 2005). However, somebody else found out and leaked the details of the exploit. This was against the security bugs policy and the will of both the reporters and the community. An official security advisory was published, includes various workarounds to the vulnerabilities. This was fixed in 1.0.4, which was released on May 11, 2005 (9 days after the initial bug report).

As of 2005, Secunia has reported 4 unpatched vulnerabilities in Firefox, versus 19 for Internet Explorer and 0 for Opera.

Criticisms

Main article: Criticisms of Mozilla Firefox

Firefox is often criticised for lacking features found in other browsers. Many argue that frequently requested features have not been implemented. Most of these features can be enabled by installing Firefox extensions, but not all users are willing to download the extensions required, preferring to have all the features they desire available within the official software package.

Some note that Firefox takes longer to launch than other browsers. This may be due to the non-platform native XUL implementation of the user interface. Other Gecko-based browsers such as K-Meleon which use platform native user interface implentations generally run faster than Firefox. Other web browsers such as Internet Explorer are tied into the base operating system, which also benefits performance. However, some users report that Firefox renders web pages faster than other non-Gecko based browsers. Another common criticism is that Firefox uses much more memory than other browsers.

Users switching from Internet Explorer sometimes experience that some websites do not render correctly in Firefox. This is almost always due to the said website using non standards-compliant Internet Explorer specific code or ActiveX applets on their site. Users migrating from other browsers may also find that some features that they are used to are missing in Firefox, for example the lack of close button on each tab. These missing features are sometimes intended. For the previous example, providing only one close button can prevent the accidental closing the tab when switching tabs, and also allows rapid closing of tabs.

Some web server administrators complain that Firefox improperly requests the favicon file with every page view, despite the server's response that the file does not exist. The ramifications of this are that server administrators should add a favicon.ico file in the root directory of the web site, refer to a favicon image file within the page, or accept the unnecessary traffic increases.

Market adoption

Statistics reference: Usage share of web browsers
A graph of Firefox 1.0 cumulative downloads, created by Asa Dotzler.

The adoption of Firefox has been rapid given the dominance of Internet Explorer in the browser market. According to Mozilla's marketing site, Mozilla Firefox 1.0, launched on November 9, 2004, and available for free from the Firefox homepage, was downloaded over a million times within 24 hours after its 1.0 release. Within 99 days, the download count reached 25 million [26]. By April 29, 2005 version 1.x was downloaded 50 million times [27].

Cumulative downloads increased in a near-linear fashion over a sustained period of time. In other words, the download rate remained fairly stable. That kind of growth was not seen in any of the Mozilla Foundation's previous product releases.

Mozilla officials hope that 10% of browser users will use Firefox by the end of 2005, a goal that analysts at WebSideStory and elsewhere believe is attainable. By April 2005, Firefox had around 6–10% of the usage share, and also 10.28% for North America areas. In Europe, based on a study by the XiTi firm, the percentages were generally higher, with an average of 13.31%.

Much of Firefox's rapid adoption results from the numerous reports of security vulnerabilities in Internet Explorer, as users look for a safer alternative. Although Firefox has security vulnerabilities of its own, many of them were found and fixed during the pre-1.0 phase of the project. As Firefox's marketshare increases, it remains to be seen whether claims that Firefox is more secure hold true; several security bugs have already been discovered since the 1.0 release.

Despite Firefox's apparent gains on Internet Explorer, Microsoft head of Australian operations, Steve Vamos, stated that Microsoft feels Firefox is not a threat and that Microsoft's users do not really want the added features of Firefox. Vamos stated that he himself never used it personally [28]. Even Microsoft Chairman Bill Gates has used Firefox, but he has stated that "so much software gets downloaded all the time, but do people actually use it?" (Weber, BBC News).

Spread Firefox campaigns

Main article: Spread Firefox

The rapid adoption was apparently accelerated by a series of aggressive community-marketing campaigns since 2004, such as a series of events dubbed "marketing week" that were organized by Blake Ross and Asa Dotzler.

On September 14, 2004, a community marketing portal dubbed "Spread Firefox" (SFX) was launched along with the Firefox Preview Release, creating a centralized space for the discussion of various marketing techniques. The "Get Firefox" button program was enhanced, that users were given "referrer points" as an incentive. The top 250 referrers are listed on the site. From time to time, marketing events are organized at the Spread Firefox website, either started by the SFX team or SFX members.

Organization adoption

During the FOSDEM 2005 conference, Tristan Nitot, the president of Mozilla Europe, said that he knew "a few companies" that had deployed the Firefox browser or Thunderbird mail client across a million seats. Those companies were reluctant to publicize the migration, as they were concerned that this may damage their relationship with Microsoft [29].

According to a CNET article published at May 12, 2005, Firefox is already used by about 10 percent of IBM's staff, or about 30,000 people. IBM is also encouraging its employees to use Firefox, with support from the company's help desk staff.

Portable Firefox

One major offspring of the Firefox project is Portable Firefox, which was created by John Haller. It is designed to be run from a USB flash drive, CDRW drive (in packet mode), Zip drive, external hard drive or some digital audio players. It retains nearly all of Firefox's features. Extensions that work in Firefox also work with Portable Firefox. Its size is reduced using compression. A benefit of this compression is that Portable Firefox loads quickly, even on slower systems and/or USB 1.1.

John Haller is also working on Portable Firefox Live, which can be run off of a CD-R or other read-only media.

Commercialization

There are a number of commercialized versions of the Firefox browser developed outside the not-for-profit Mozilla Foundation.

The next version of Netscape, known as Netscape Browser or Netscape 8, is based on Firefox. And a start-up, Round Two (formerly Mozsource and more formerly E-Flo), is also going to build enhancements for Firefox [30].

See also

Footnotes

  1. ^  Mozilla contributors list, Mozilla.org
  2. ^  Forbes, September 29, 2004.
  3. ^  Wall Street Journal, September 16, 2004. Walter Mossberg wrote that "I suggest dumping Microsoft's Internet Explorer Web browser, which has a history of security breaches. I recommend instead Mozilla Firefox, which is free at www.mozilla.org. It's not only more secure but also more modern and advanced, with tabbed browsing, which allows multiple pages to be open on one screen, and a better pop-up ad blocker than the belated one Microsoft recently added to IE."
  4. ^  Stross, New York Times. December 19, 2004. The article states that "With Firefox, open-source software moves from back-office obscurity to your home, and to your parents', too. (Your children in college are already using it.)"
  5. ^  Channel 9 wiki Internet Explorer feature requests — this is a quite extensive list of features that people believe should be in Internet Explorer
  6. ^  Firefox trademark, USPTO
  7. ^  Mozilla Firefox Roadmap (see also: Mozilla Firefox 1.0 Roadmap)
  8. ^  From Ben Goodger's weblog:
  9. ^  Ben Goodger discussion on the Firefox update system (May 2, 2005).
  10. ^  Changes for Extension Developers (May 2, 2005). Ben Goodger's weblog.
  11. ^  Firefox nightlies now build with SVG (April 26, 2005). Source: Anne van Kesteren's weblog about Markup & Style.
  12. ^  1.8 alpha 6 around the corner (December 26, 2004). Source: Asa Dotzler's weblog.
  13. ^  Mozilla Wiki. Firefox:2.0 PRD. A document that describes the product requirements for Firefox 2, and also anticipates an interim milestone marker for Firefox 1.5.
  14. ^  IE7 beta 1 – A few details... (April 22, 2005). Source: Internet Explorer weblog. In the blog entry, Chris Wilson said that Microsoft was soon to "Support the alpha channel in PNG images [in Internet Explorer 7]. We’ve actually had this on our radar for a long time, and have had it supported in the code for a while now. We have certainly heard the clear feedback from the web design community that per-pixel alpha is a really important feature."
  15. ^  Firefox nightlies now build with SVG (April 26, 2005). Source: Anne van Kesteren's weblog about Markup & Style.
  16. ^  Firefox System Requirements. Mozilla.org.
  17. ^  Run Firefox in Windows 95 (and Windows 98 original release). Source: John Haller's website. Details a procedure to install Firefox on Windows 95 and the original release of Windows 98.
  18. ^  Firefox release notes for the 1.x series. Mozilla.org.
  19. ^  FreshPort entry on Firefox. freshports.org.
  20. ^  Mozilla for the Windows x64 platform.
  21. ^  External Protocol Whitelisting. Neil Turner's weblog.
  22. ^  Hacking Mozilla. Mozilla.org.
  23. ^  Mozilla Security Bug Bounty Program. Mozilla.org.
  24. ^  Mozilla Security Bug Bounty FAQ. Mozilla.org.
  25. ^  Handling Mozilla Security Bugs. Mozilla.org.
  26. ^  firefox 25,000,000. Source: Asa Dotzler's weblog.
  27. ^  Firefox: Blazing a Trail to 50,000,000. Spread Firefox.
  28. ^  Firefox sneaks into the enterprise. ZDNet UK.
  29. ^  Microsoft: Firefox does not threaten IE's market share. ZDNet.
  30. ^  Round Two looks to launch enhanced Firefox. MozillaNews.

References

External links

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