Internet Explorer 8
Internet Explorer 8 in Windows 7
|Initial release||March 19, 2009|
|Stable release||8.0.7601.17514 (February 22, 2011[±])|
|Preview release||None [±]|
|Included with||Windows 7 and Windows Server 2008 R2|
|Platform||See: platform support|
|License||Proprietary, requires Windows license|
Internet Explorer versions:
Windows Internet Explorer 8 (IE8) is a web browser developed by Microsoft in the Internet Explorer browser series, released on March 19, 2009. It is the successor to Internet Explorer 7, released in 2006, and is the default browser for Windows 7 and Windows Server 2008 R2 operating systems. As of September 2013[update], estimates of IE8's global market share ranged from 6.93% to 8.73%.
Internet Explorer 8 is the first version of IE to pass the Acid2 test, and the last of the major browsers to do so, although it scores only 20/100 on the Acid3 Test. According to Microsoft, security, ease of use, and improvements in RSS, Cascading Style Sheets, and Ajax support were its priorities for IE8.
Internet Explorer 8 is the last version of Internet Explorer to be supported on Windows XP and Windows Server 2003; the next version, Internet Explorer 9, is supported only on Windows Vista and later.
- 1 History
- 2 New features
- 2.1 Accelerators
- 2.2 Autocomplete changes
- 2.3 Automatic tab-crash recovery
- 2.4 Developer tools
- 2.5 Favorites Bar
- 2.6 Inline search within pages
- 2.7 InPrivate
- 2.8 Performance and stability
- 2.9 SmartScreen Filter
- 2.10 Suggested sites
- 2.11 Web Slices and authenticated feeds
- 2.12 Zooming and image scaling
- 2.13 ActiveX behavior control
- 3 Removed features
- 4 Standards support
- 5 Adoption
- 6 Reviews
- 7 System requirements
- 8 See also
- 9 References
- 10 External links
IE8 development started in at least March 2006. In February 2008, Microsoft sent out private invitations for IE8 Beta 1, and on March 5, 2008, released Beta 1 to the general public, although with a focus on web developers. The release launched with a Windows Internet Explorer 8 Readiness Toolkit website promoting IE8 white papers, related software tools, and new features in addition to download links to the Beta. The Microsoft Developer Network (MSDN) added new sections detailing new IE8 technology. Major press focused on a controversy about Version Targeting, and two new features then called WebSlice and Activities. The readiness toolkit was promoted as something "developers can exploit to make Internet Explorer 8 'light up'."
On August 27, 2008, Microsoft made IE8 Beta 2 generally available. PC World noted various Beta 2 features such as InPrivate mode, tab isolation and color-coding, and improved standards and compatibility compared to Internet Explorer 7. Two name changes included Activities to Accelerators, and the IE7 Phishing filter renamed Safety Filter in the first Beta to SmartScreen, both accompanied by incremental technical changes as well. By August 2008, the new feature called InPrivate had taken the spotlight.
The first non-beta version was released on March 19, 2009.
On January 5, 2009, a tool was provided by Microsoft to block the automatic install of Internet Explorer 8 via Windows Update.
As of May 20, 2009, Windows XPe (Embedded) was not a supported platform for Internet Explorer 8. There have been no announcements of planned support.
On May 27, 2010, Microsoft released Internet Explorer 8 optimized for Bing and MSN. The file name is BOIE8_ENUS_XP.exe.
|Version||Release Date||Windows XP SP2 /
Windows Server 2003 SP1
|Windows Vista /
Windows Server 2008
|Beta 1||8.0.6001.17184||March 5, 2008||Yes||Yes||No||3|
|Beta 2||8.0.6001.18241||August 27, 2008||Yes||Yes||Yes||25|
|Partner Build (Pre RC)||8.0.6001.18343||December 10, 2008||Yes||Yes||Yes||1|
|Release Candidate||8.0.6001.18372||January 26, 2009||Yes||Yes||Yes||25|
|Release to Manufacturing||8.0.6001.18702||March 19, 2009||Yes||Yes||Included||25–63*|
Language support (localization) was not complete on release. IE8 was released with 25 languages. This grew up to 63 for Vista 32-bit in June 2009. Support for additional languages can come pre-installed based on the OS, or downloaded and installed via Multilingual User Interface (MUI) packages.
|Operating system||Service pack level||CPU architecture|
|Windows XP||SP2 or later||IA-32 and x64|
|Windows Server 2003||SP2 or later||IA-32 and x64|
|Windows Vista||RTM or later||IA-32 and x64|
|Windows Server 2008||RTM or later||IA-32 and x64|
|Windows 7||RTM or later||IA-32 and x64|
|Windows Server 2008 R2||RTM or later||x64 and Itanium|
Accelerators are a form of selection-based search which allow a user to invoke an online service from any other page using only the mouse. Actions such as selecting the text or other objects will give users access to the usable Accelerator services (such as blogging with the selected text, or viewing a map of a selected geographical location), which can then be invoked with the selected object. According to Microsoft, Accelerators eliminate the need to copy and paste content between web pages. IE8 specifies an XML-based encoding which allows a web application or web service to be invoked as an Accelerator service. How the service will be invoked and for what categories of content it will show up are specified in the XML file. Similarities have been drawn between Accelerators and the controversial Smart tags feature experimented with in the IE 6 Beta but withdrawn after criticism (though later included in MS Office).
The address bar features domain highlighting for added security so that the top-level domain is shown in black whereas the other parts of the URL are grayed out. Domain highlighting cannot be turned off by users or web sites. Other features of the address bar include support for pasting multi-line URLs and an improved model for inserting the selection caret, and selecting words, or entire URLs in the Address bar. The inline autocomplete feature has been dropped from Internet Explorer 8, leading to criticism by beta users.
Automatic tab-crash recovery
If a website or add-on causes a tab to crash in Internet Explorer 8, only that tab is affected. The browser itself remains stable and other tabs remain unaffected, thereby minimizing any disruption to the browsing experience. If a tab unexpectedly closes or crashes it is automatically reloaded with the same content as before the crash.
Another new feature in IE8 is a redesigned Favorites Bar, which can now host content such as Web Slices, web feeds, and documents, in addition to website links.
Inline search within pages
Internet Explorer 8 now has replaced the Find... dialog box with an inline Find toolbar which can be activated by pressing CTRL+F or from search box drop-down menu but the F3 (or any other kind of a keyboard-driven) NextFind command has gone. Internet Explorer 8 highlights all instances of found words while allowing the user to continue the navigation normally.
A new security mode called InPrivate debuted with IE8, and consists of two main features: InPrivate Browsing and InPrivate Filtering. InPrivate Browsing has been described as a "porn mode" in various news outlets. A similar feature, first introduced in Safari in 2005, was later implemented in Firefox 3.5, Opera 10.5 and Google Chrome. InformationWeek mentioned it as a "'Stealth' Privacy Mode".
InPrivate Browsing in Internet Explorer 8 helps prevent one's browsing history, temporary Internet files, form data, cookies, and usernames and passwords from being retained by the browser, leaving no easily accessible evidence of browsing or search history. InPrivate Filtering provides users an added level of control and choice about the information that third party websites can use to track browsing activity. InPrivate Subscriptions allow you to augment the capability of InPrivate Blocking by subscribing to lists of websites to block or allow.
As with other private browsing modes there are ways that information about a browsing session can be recovered.
Performance and stability
Internet Explorer 8 includes performance improvements across the HTML parser, CSS engine, mark-up tree manipulation as well as the JScript runtime and the associated garbage collector. Memory leaks due to inconsistent handling of circular references between JScript objects and DOM objects were corrected. For better security and stability, IE8 uses the Loosely Coupled Internet Explorer (LCIE) architecture and runs the browser frame and tabs in separate processes. LCIE prevents glitches and hangs from bringing down the entire browser and leads to higher performance and scalability. Permissions for ActiveX controls have been made more flexible – instead of enabling or disabling them globally, they can now be allowed on a per-site basis.
SmartScreen Filter extended Internet Explorer 7's phishing filter to include protection from socially engineered malware. Every website and download is checked against a local list of popular legitimate websites, if the site is not listed the entire address is sent to Microsoft for further checks. If it has been labeled as an impostor or harmful, Internet Explorer 8 will show a screen prompting that the site is reported harmful and shouldn't be visited. From there the user can either visit his or her homepage, visit the previous site, or continue to the unsafe page. New with SmartScreen in IE8: if a user attempts to download a file from a location reported harmful then the download is cancelled. The effectiveness of SmartScreen filtering is superior to socially engineered malware protection in other browsers 
This feature can be disabled or enforced using Group Policy.
This feature is described by Microsoft as a tool to suggest websites, which is done by the browser sending information to Microsoft over a secure connection, which keeps the information and a per-session, uniquely generated identifier for a short time. The Suggested Sites feature is turned off by default and is disabled when the user is browsing with InPrivate enabled or visiting SSL-secured, intranet, IP address, or IDN address sites. Information that could be personally identifiable, such as the user's IP address and browser information is sent to Microsoft as an artifact of the HTTPS protocol. Microsoft has stated that they do not store this information.
Web Slices and authenticated feeds
Web Slices are snippets of the entire page to which a user can subscribe. Web Slices will be kept updated by the browser automatically, and can be viewed directly from the Favorites bar, complete with graphics and visuals. Developers can mark parts of the pages as Web Slices, using the
hSlice microformat. Web Slices have been compared to Active Desktop, introduced in Internet Explorer 4 in 1997.
Zooming and image scaling
Full-page zoom now reflows the text to remove the appearance of horizontal scrollbars on zooming. Image scaling is done using bicubic interpolation resulting in smoother looking images when scaled.
Using the compatibility mode will cause style issues with <select> form elements when changing zoom levels.
ActiveX behavior control
The information bar lets users allow an ActiveX control to run on all Web sites or only the current one. Users can easily make changes to this behavior through the Manage Add-ons dialog box. For each ActiveX control, there's a list of sites where it has been approved by the user.
- It is no longer possible to have Internet Explorer automatically open the current session at the next startup. User should now do so manually.
- Address Bar inline AutoComplete
- CSS Expressions are no longer supported in Internet Explorer 8 Standards mode
- Opening web folders (must now be done through the drive mapping tools).
- Support for the proprietary <
wbr> element is dropped
- The option to delete files and settings stored by addons or ActiveX controls; rather, it is performed automatically.
- Web page links and images can be dragged only to the desktop or to an open Explorer window.
The web standards supported by IE8 include the following:
- Accessible Rich Internet Applications (ARIA) specification for enhanced accessibility in Ajax-based rich Internet applications.
- CSS level 1 is fully supported. CSS level 2 is mostly supported, however several rendering bugs and regressions may affect conformance. CSS level 3 is partially supported.
- Data: URIs (limited to non-navigable content less than 32KiB)
- DOM, which brings it in line with implementations in other browsers. Attributes and properties in DOM objects are now handled differently, and the behavior of the
removeAttributemodifiers have been changed to match the behavior of other browsers.
- DOM storage
- HTML, including the HTML object fallback and the
- Partial HTML 5 support, including cross-document messaging
- Selectors APIs
However, IE8 does not support some other W3C standards:
- Significant parts of DOM Level 2 and 3, including the standard event model used by other browsers.
- SVG. The fact that IE8 does not support SVG was criticized by Tim Berners-Lee.
- XHTML (except when used as a form of HTML)
IE8 passes the Acid2 test, but fails the Acid3 test with a score of 20/100. During its development, Microsoft developed over 7,000 tests for CSS level 2 compliance, which were submitted to the W3C for inclusion in their test suite.
Internet Explorer 8 was promoted by Microsoft as having stricter adherence to W3C described web standards than Internet Explorer 7. As a result, as in every IE version before it, some percentage of web pages coded to the behavior of the older versions would break in IE8. This would have been a repetition of the situation with IE7 which, while having fixed bugs from IE6, broke pages that used the IE6-specific hacks to work around its non-compliance. This was especially a problem for offline HTML documents, which may not be updatable (e.g. stored on a read-only medium, such as a CD-ROM or DVD-ROM).
To avoid this situation, IE8 implements a form of Version Targeting whereby a page could be authored to a specific version of a browser using the
X-UA-Compatible declaration either as a meta element or in the HTTP headers.
In order to maintain backwards compatibility, sites can opt-into IE7-like handling of content by inserting a specially created meta element into the web page that triggers the "Compatibility mode" in the browser, using:
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
|Internet Explorer Market Share|
|Internet Explorer 6||4.4%|
|Internet Explorer 7||2.14%|
|Internet Explorer 8||20.6%|
|Internet Explorer 9||9.0%|
|Internet Explorer 10||11.1%|
|Internet Explorer 11||10.4%|
Five weeks after the release of IE 8 Beta 2 in August 2008, Beta 1's market share had grown from 0.05 percent to 0.61 percent, according to Net Applications. On July 2009, just under four months after the final release, the market share jumped to 13 percent.
In a March 19, 2009 review, Benny Har-Even of IT PRO offered some praise of Internet Explorer 8, noting its reliability and good features and concluding that it was "certainly the best version of Internet Explorer in a long time", but also that "there's not yet anything here to make Firefox users want to jump ship". He offered praise to Microsoft for paying attention to their competition and producing "a better featured, faster and more reliable browsing experience for the masses" and suggested that as Microsoft continues to improve the product, it would become "harder to persuade the unconverted to switch away from IE."
The next month, on April 2, Mark Joseph Edwards wrote in the newsletter Windows Secrets that the new edition of Internet Explorer had greatly improved security, speed and compatibility, but opined that it still lagged behind competitors in all three areas. Edwards noted that at the time Internet Explorer 8 was still underperforming relative to other browsers in speed and was not as successful in displaying webpages as they were intended to display as such browsers as Firefox and Opera. In terms of security, he wrote that its "continued reliance on ActiveX makes the browser vulnerable in its very foundation." For these reasons, he suggested that Firefox remained a better alternative to Internet Explorer 8, even though it was a "much better browser than IE 7."
IE8 requires at least:
- Operating systems:
- Processor speed: 233 MHz
- 64 MB on 32-bit versions of Windows XP or Windows Server 2003
- 128 MB on 64-bit versions of Windows XP or Windows Server 2003
- 512 MB on Windows Vista or Windows Server 2008
- Display: Super VGA (800×600) monitor with 256 colors
- Peripherals: Modem or internet connection; mouse or compatible pointing device
- "Internet Explorer 8 system requirements". Microsoft. Retrieved 3 October 2012.
- "Internet Explorer 8 Upgrade Advisor does not function correctly after you install update 2183461 in Windows 7 or in Windows Server 2008 R2 (Revision: 2.0)". Microsoft Support. Microsoft. 4 November 2010. Retrieved 3 October 2012.
- Heiner, Dave (June 11, 2009). "Working To Fulfill Our Legal Obligations in Europe for Windows 7". Microsoft.
- "Global Web Stats". W3Counter. January 2011. Retrieved January 18, 2011.
- "StatCounter Global Stats". StatCounter. January 2011. Retrieved January 18, 2011.
- "Browser Version Market Share". Net Applications. January 2011. Retrieved January 18, 2011. Note: IE8 + "Compatibility Mode" numbers
- LaMonica, Martin (May 3, 2007). "Microsoft Hints at General Plan for IE 8". CNET. Retrieved March 11, 2008.
- Reimer, Jeremy (May 2, 2007). "Microsoft Drops Hints about Internet Explorer 8". Ars Technica. Retrieved May 2, 2007.
- Hall, Kevin (March 17, 2010). "Internet Explorer 9 Adds HTML5, Drops Windows XP". Dvice.com.
- Foley, Mary Jo (March 16, 2010). "Microsoft IE9 Developer Preview with HTML5 Support Ready for Download". ZDNet. CBS Interactive.
- LaMonica, Martin (March 20, 2006). "Gates Looks To Expand View Beyond Windows". CNET. Retrieved August 28, 2008.
- Foley, Mary Jo (February 23, 2008). "Private IE 8 Beta 1 Test Build Coming Soon". ZDNet. Retrieved March 1, 2008.
- http://www.microsoft.com/windows/products/winfamily/ie/ie8/readiness/Install.htm[dead link] Internet Explorer 8 Readiness Toolkit
- Thurrott, Paul. "Internet Explorer 8 Beta 1 Review". Windows IT Pro. Retrieved March 12, 2008.
- "MSDN "What's New in Internet Explorer 8"". Msdn2.microsoft.com. Retrieved 2013-01-25.
- "MSDN IE8 White Papers". Microsoft.
- http://www.microsoft.com/windows/internet-explorer/beta/worldwide-sites.aspx[dead link] IE8 Beta 2 download page.
- Mediati, Nick (August 27, 2008). "Internet Explorer 8 Beta 2: Can It Outfox Firefox?". PC World.
- "IE8 Beta 1 For Developers Now Available in Chinese (Simplified) and German". Blogs.msdn.com. 2008-04-07. Retrieved 2013-01-25.
- "IE8 Beta 2 Now Available in 25 Languages". Blogs.msdn.com. 2008-09-16. Retrieved 2013-01-25.
- "Microsoft Releases to Select Testers Updated IE 8 Build". ZDNet.
- "Internet Explorer 8 Release Candidate Now Available". Blogs.msdn.com. 2009-01-26. Retrieved 2013-01-25.
- "Microsoft Announces Availability of Internet Explorer 8"
- "Internet Explorer 8 is now available in 18 additional languages - IEBlog - Site Home - MSDN Blogs". Blogs.msdn.com. 2009-04-24. Retrieved 2013-01-25.
- Kannan, Vishwac Sena (June 26, 2009). "IE8 Is Now Available on Windows XP for 5 More Languages". Microsoft.
- "Availability of Windows Internet Explorer 8". Microsoft Support. Microsoft. 10 October 2011. Retrieved 15 November 2012.
- "Installing Internet Explorer 8". Microsoft TechNet. Microsoft. Retrieved 15 November 2012.
- "Windows Internet Explorer 8 for Windows XP". Microsoft Download Center. Microsoft. 19 March 2009. Retrieved 15 November 2012.
- "Windows Internet Explorer 8 for Windows Server 2003 SP2 64-bit Edition or Windows XP Professional 64-bit Edition". Microsoft Download Center. Microsoft. 19 March 2009. Retrieved 15 November 2012.
- "Windows Internet Explorer 8 for Windows Server 2003". Microsoft Download Center. Microsoft. 11 March 2009. Retrieved 15 November 2012.
- "Windows Internet Explorer 8 for Windows Vista or Windows Server 2008". Microsoft Download Center. Microsoft. 11 March 2009. Retrieved 15 November 2012.
- "Windows Internet Explorer 8 for Windows Vista 64-bit Edition or Windows Server 2008 64-bit Edition". Microsoft Download Center. Microsoft. 19 March 2009. Retrieved 15 November 2012.
- Foley, Mary Jo. "IE 8 To Feature WebSlices, Activities". ZDNet. Retrieved March 5, 2007.
- "Internet Explorer 8: Service Gallery". Microsoft. Retrieved August 28, 2008.
- "New and Exciting Features". Microsoft. Retrieved March 5, 2008.
- "How Do I Make My Site 'Light Up' with Internet Explorer 8?". Microsoft. Retrieved March 5, 2008.
- "Address Bar improvements in Internet Explorer 8". Blogs.msdn.com. 2008-03-11. Retrieved 2013-01-25.
- "Internet Explorer 8 Readiness Toolkit". September 10, 2009.
- "Internet Explorer 8: Features (Section: Better Find on Page)". Internet Explorer 8 web site. Microsoft Corporation. Retrieved 8 January 2010. "Internet Explorer 8 includes a completely redesigned Find On Page toolbar, which is activated by pressing Ctrl-F or choosing Find On Page from the Edit menu or Search box drop-down."
- McDougall, Paul (August 26, 2008). "Internet Explorer 8 To Include 'Stealth' Privacy Mode". InformationWeek.
- "Microsoft Internet Explorer 8 To Include So-Called 'Porn Mode' Privacy Feature". Fox News. August 28, 2008. Retrieved September 13, 2008.
- "'Porn Mode' Angers Rivals". The Sun. August 28, 2008. Retrieved September 13, 2008.
- Firth, Niall (August 28, 2008). "Microsoft Launches 'Porn Mode' Browser That Lets You Surf the Web Without Leaving a Trace". Daily Mail. Retrieved September 13, 2008.
- "Porn Mode Comes to IE8". Indiatimes. August 20, 2008. Retrieved September 13, 2008.
- "'Porn Mode' for New Internet Explorer". metro.co.uk. August 28, 2008. Retrieved September 13, 2008.
- "Microsoft's 'Porn Mode' Browser". news.sky.com. August 29, 2008. Retrieved September 13, 2008.
- Peterkin, Tom (August 28, 2008). "Microsoft Launches 'Porn Browser' To Protect Privacy". The Daily Telegraph. Retrieved September 13, 2008.[dead link]
- Tam, Pei Zuan (October 2, 2005). "Private Browsing with Safari Web Browser". MacNify.
- Keizer, Gregg (August 26, 2008). "Microsoft Adds Privacy Tools to IE8". Computerworld.
- "Circular Memory Leak Mitigation". Microsoft. Retrieved August 26, 2011.
- "How Do I Keep My Site and Add-Ons Working with Internet Explorer 8?". Microsoft. Retrieved March 5, 2008.
- "Please upgrade your browser - Microsoft Windows". Microsoft.com. Retrieved 2013-01-25.
- Lawrence, Eric (July 2, 2008). "IE8 Security Part III: SmartScreen Filter". Retrieved September 2, 2008.
- "The Q3 Socially Engineered Malware Test Report". August 14, 2009.
- "Suggested Sites & Privacy". IEBlog. Microsoft. February 5, 2009. Retrieved February 6, 2009.
- "Microsoft Defends Internet Explorer 'Phone Home' Feature". ITWorld.
- Gralla, Preston. "IE8's New WebSlices Feature: Welcome to 1997". Computer World. Retrieved March 12, 2008.
- "Web Slice Format Specification - Version 0.9". Msdn.microsoft.com. Retrieved 2013-01-25.
- "Authenticated Feeds" (PDF). Retrieved 2013-01-25.
- "Image Scaling in Internet Explorer 8". Msdn.microsoft.com. Retrieved 2013-01-25.
- "'Open These the Next Time I Use Internet Explorer' No Longer an Option in IE 8". Blogs.msdn.com. 2009-03-16. Retrieved 2013-01-25.
- Galineau, Sylvain (October 16, 2008). "Ending Expressions". Retrieved September 15, 2010.
- "'Open as Web Folder' Not in the Internet Explorer 8 File". MSDN. Microsoft. March 20, 2009. Retrieved April 4, 2009.
- ppgrainbow (March 19, 2008). "Internet Explorer 8 Available Now!". DeviantArt. Retrieved March 22, 2008.
- Windows Help and Support: "Delete webpage history"
- "4 Internet Explorer 8 Annoyances". ghacks.net. May 10, 2009.
- Hachamovitch, Dean (March 3, 2008). "Microsoft's Interoperability Principles and IE8". Retrieved March 3, 2008.
- "W3C - CSS browsers". W3.org. Retrieved 2013-01-25.
- "James Hopkins » IE8 Bugs". Idreamincode.co.uk. Retrieved 2013-01-25.
- "HTML Enhancements in Internet Explorer 8". Msdn.microsoft.com. 2012-10-26. Retrieved 2013-01-25.
- "Berners-Lee Unhappy with IE8". September 29, 2008. Retrieved September 4, 2009.
- "IE 8: On the Path to Web Standards Compliance - ACID 2 Test Pass Complete". Microsoft. December 19, 2007. Retrieved December 20, 2007.
- Hachamovitch, Dean (December 19, 2007). "Internet Explorer 8 and Acid2: A Milestone". Retrieved September 15, 2010.
- Upton, James (March 26, 2009). "More Web Standards Tests Submitted to the W3C". Retrieved September 15, 2010.
- Gustafson, Aaron (January 21, 2008). "Beyond DOCTYPE: Web Standards, Forward Compatibility, and IE8". Retrieved March 22, 2007.
- "Browser Version Market Share". Net Applications. January 2014. Retrieved 2013-08-12.
- IT PRO Reviews "Internet Explorer 8 review".
- Windows Secrets "No Reason To Rush Your Upgrade to IE 8".