 | This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Internet Explorer 8" – news ·newspapers ·books ·scholar ·JSTOR(May 2024) (Learn how and when to remove this message) |
 | |
 Screenshot of Internet Explorer 8 | |
| Developer(s) | Microsoft |
|---|---|
| Initial release | March 19, 2009; 16 years ago (2009-03-19) |
| Stable release | Service Pack 1 (8.00.7601.17514) / February 22, 2011; 14 years ago (2011-02-22) |
| Engine | MSHTML 4.0 |
| Operating system | |
| Platform | c.f.§ system requirements |
| Included with | Windows 7 andWindows Server 2008 R2[2] |
| Predecessor | Internet Explorer 7 (2006) |
| Successor | Internet Explorer 9 (2011) |
| Type | Web browser Aggregator FTP client |
| License | Proprietary,requires Windows license |
| Website | technet |
Windows Internet Explorer 8 (IE8) is aweb browser forWindows. It was released byMicrosoft on March 19, 2009, and was the default browser onWindows 7 andWindows Server 2008 R2.[3]
It is the first version of IE to pass theAcid2 test, the last of the major browsers to do so. (In the laterAcid3 Test, it only scores 24/100.) It is the last version of Internet Explorer to supportWindows XP SP2–SP3,Windows XP x64 Edition SP2,Windows Server 2003 SP2,Windows Vista RTM–SP1, andWindows Server 2008 RTM, as well asItanium-based processors.[4][5] Additionally, it introduced aCompatibility View mode to optionally emulate older versions' rendering behaviour, and color-codedtab groups where links opened in new tabs share the color of the website they originated from.[6] According to Microsoft, security, ease of use, and improvements inRSS,CSS, andAjax support were its priorities for IE8.[7][8]
.svg)
IE8 development started in or before March 2006.[9] In February 2008, Microsoft sent out private invitations for IE8 Beta 1,[10] and on March 5, 2008, released Beta 1 to the general public,[11] although with a focus on web developers.[12] The release launched with aWindows Internet Explorer 8 Readiness Toolkit website promoting IE8white papers, related software tools, and new features in addition to download links to the Beta.[11][13]Microsoft Developer Network (MSDN) added new sections detailing new IE8 technology.[11][14] Major press focused on a controversy about Version Targeting, and two new features then calledWebSlice andActivities. The readiness toolkit was promoted as something "developers can exploit to make Internet Explorer 8 'light up'."[11]
On August 27, 2008, Microsoft made IE8 Beta 2 generally available.[15]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.[16] Two name changes includedActivities toAccelerators, and the IE7Phishing filter renamedSafety Filter in the first Beta toSmartScreen, both accompanied by incremental technical changes as well.[16] By August 2008, the new feature calledInPrivate had taken the spotlight.[16]
On January 5, 2009, a tool was provided by Microsoft to block the automatic install of Internet Explorer 8 viaWindows Update.[citation needed]
IE8 reached general availability on March 19, 2009. A version optimized for Bing and MSN was also available.[17][18]
Language support (localization) was not complete on release. IE8 was released with 25 languages.[19] This grew up to 63 for 32-bit in June 2009.[20] Support for additional languages can come pre-installed based on the OS, or downloaded and installed viaMultilingual User Interface (MUI) packages.[21]
| Version | Release Date | Windows XP / Windows Server 2003 | Windows Vista / Windows Server 2008 | Windows 7 / Windows Server 2008 R2 | Languages | |
|---|---|---|---|---|---|---|
| Name | Number | |||||
| Beta 1[11] | 8.0.6001.17184 | March 5, 2008 | Yes | Yes | No | 3[22] |
| Beta 2[15] | 8.0.6001.18241 | August 27, 2008 | Yes | Yes | Yes | 25[23] |
| Partner Build(Pre RC)[24] | 8.0.6001.18343 | December 10, 2008 | Yes | Yes | Yes | 1 |
| Release Candidate[25] | 8.0.6001.18372 | January 26, 2009 | Yes | Yes | Yes | 25[25] |
| Final Release[19] | 8.0.6001.18702 | March 19, 2009 | Yes | Yes | Included | 25–63* |
| Service Pack 1 | 8.0.7601.17514 | February 9, 2011 | No | No | Included | 25–63* |
Support for IE8 on most supported Windows versions ended on January 12, 2016, when Microsoft began requiring customers to use the latest version of Internet Explorer available for each Windows version.[26] For versions of Windows in which IE8 was the final version of Internet Explorer available, support ended alongside the end of support for that version of Windows. This meant that support for IE8 on XP ended with itsend of extended support on April 8, 2014.[27] On October 13, 2020, Microsoft released the final IE8 update for Windows Embedded Standard 7, marking the end of IE8 support on all platforms.[28]
IE8 contains many new features, includingWebSlices andAccelerators. At the first glance, the most visible change of the user interface is that the tabs have an inwardcolour gradient instead of outward.[29][30]
Accelerators are a form ofselection-based search which allow a user to invoke an online service from any other page using only the mouse.[31] 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 toMicrosoft, Accelerators eliminate the need to copy and paste content between web pages.[29] IE8 specifies anXML-based encoding which allows aweb application orweb 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.[32] Similarities have been drawn between Accelerators and the controversialSmart tags feature experimented with in theIE 6 Beta but withdrawn after criticism (though later included in MS Office).[12]
Theaddress 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 bybeta users.[33]
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.[citation needed]
For developers, Internet Explorer 8 includes tools that allow debuggingHTML,CSS,JavaScript, andVBScript within the browser.[34]
Another new feature in IE8 is a redesignedFavorites Bar, which can now host content such as Web Slices,web feeds, and documents, in addition to website links.[citation needed]
Internet Explorer 8 now has replaced theFind... dialog box with an inlineFind toolbar which can be activated by pressingCtrl+F or from search box drop-down menu but theF3 (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.[35]
A new security mode called InPrivate debuted with IE8, and consists of two main features: InPrivate Browsing and InPrivate Filtering.[16] InPrivate Browsing has been described as a "porn mode" in various news outlets.[36][37][38][39][40][41] A similar feature, first introduced inSafari in 2005,[42] was later implemented inFirefox 3.5,Opera 10.5, andGoogle Chrome.
When a user uses InPrivate Browsing in Internet Explorer 8, one's browsing history, temporary Internet files, form data, cookies, and usernames and passwords are not retained by the browser, leaving no local 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 users 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.
Internet Explorer 8 includes performance improvements across the HTML parser, CSS engine, mark-up tree manipulation as well as theJScript runtime and the associatedgarbage collector.Memory leaks due to inconsistent handling of circular references between JScript objects and DOM objects were corrected.[43] For better security and stability, IE8 uses theLoosely Coupled Internet Explorer (LCIE) architecture andruns 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 forActiveX controls have been made more flexible – instead of enabling or disabling them globally, they can now be allowed on a per-site basis.[44]
SmartScreen Filter extendedInternet Explorer 7'sphishing 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.[45] If it has been labeled as animpostor 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 herhomepage, visit the previous site, or continue to the unsafe page.[46] If a user attempts to download a file from a location reported harmful, then the download is cancelled. The effectiveness of SmartScreen filtering has been reported to be superior to socially engineered malware protection in other browsers.[47]
This feature can be disabled or enforced usingGroup 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.[48] The Suggested Sites feature is turned off by default and is disabled when the user is browsing with InPrivate enabled or visitingSSL-secured,intranet,IP address, orIDN 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 theHTTPS protocol. Microsoft has stated that they do not store this information.
The functionality was defended by Microsoft after itworld.com's Gregg Keizer described it as a "phone home" feature.[49]
Web Slices are snippets of a full webpage to which a user cansubscribe.[31] Web Slices are 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 thehAtom andhSlicemicroformats. Web Slices have been compared toActive Desktop, introduced inInternet Explorer 4 in 1997.[50]
Microsoft donated the specification to thepublic domain under theCreative Commons Public Domain Dedication. It is also covered by theMicrosoft Open Specification Promise.[51]
Windows RSS Platform also supports authenticated feeds beginning with Internet Explorer 8.[52]
Full-page zoom now reflows the text to remove the appearance of horizontal scrollbars on zooming.[44]Image scaling is done usingbicubic interpolation resulting in smoother looking images when scaled.[53]
Using theCompatibility View mode will cause style issues with<select> form elements when changing zoom levels.
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.
<wbr> element is dropped.[57]Internet Explorer 8's main rendering mode, known as standards mode, has improved support for variousweb standards, especially CSS, compared to Internet Explorer 7 and earlier versions.[60]
The web standards supported by IE8 include the following:
getAttribute,setAttribute, andremoveAttribute modifiers have been changed to match the behavior of other browsers.[32]abbr and elements[63]However, IE8 does not support some other W3C standards:
IE8 passes theAcid2 test,[65][66] but fails theAcid3 test with a score of 24/100. 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.[67]
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 ofVersion Targeting whereby a page could be authored to a specific version of a browser using theX-UA-Compatible declaration either as ameta element or in theHTTP headers.[68]
In order to maintain backwards compatibility, sites can opt-into IE7-like handling of content by inserting a specially createdmeta element into the web page that triggers the "Compatibility View" mode in the browser, using:[60]
<metahttp-equiv="X-UA-Compatible"content="IE=EmulateIE7"/>
Five weeks after the release of IE8 Beta 2 in August 2008, Beta 1's market share had grown from 0.05 percent to 0.61 percent, according toNet Applications.[69] In July 2009, just under four months after the final release, the market share jumped to 13 percent.[70]
As of September 2013[update], estimates of IE8's global market share ranged from 6.93% to 8.73%.[71][72][73]
According to a Net Applications web analytics report from October 2014, Internet Explorer 8 accounted for 17.31% of web traffic, now overtaken by IE11 in usage.
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."[74] 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."[74]
The next month, on April 2, Mark Joseph Edwards wrote in the newsletterWindows 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.[75] 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."[75] 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."[75]
Around 2010, atheme named "BlueSky" was created for the Mozilla Firefox browser with the aim to resemble the graphical user interface of Internet Explorer 8 as accurately as possible.[76][77]
| Operating system | Service pack needed | CPU architecture | Minimum RAM |
|---|---|---|---|
| Windows XP | SP2 or later | IA-32[80] | 64 MB |
| Windows XP x64 Edition | SP2 only | x64[81] | 128 MB |
| Windows Server 2003 | SP2 only | IA-32[82] andx64[81] | 64 MB on IA-32, 128 MB on x64 |
| Windows Vista | RTM or later | IA-32[83] andx64[84] | 512 MB |
| Windows Server 2008 | RTM or later | IA-32[83] andx64[84] | 512 MB |
| Windows 7 | RTM or later | IA-32[2] andx64[2] | 1 GB |
| Windows Server 2008 R2 | RTM or later | x64[2] andItanium[2] | 1 GB |
{{cite web}}: CS1 maint: bot: original URL status unknown (link) Internet Explorer 8 Readiness ToolkitInternet 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.
[BlueSky] is the theme of the most perfectly simulating Internet Explorer 8 by far.
{{cite web}}: CS1 maint: bot: original URL status unknown (link)| Preceded by | Internet Explorer 8 2009 | Succeeded by |
