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Sleipnir (web browser)
open-in-new
<h2 id="history">History</h2> <p>Sleipnir was originally developed by Yasuyuki Kashiwagi. In November 2004, the computer containing Sleipnir's source code was stolen.<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> In 2005, Kashiwagi established Fenrir & Co. to start development of a new version of Sleipnir. Starting with version 2, the new versions are not compatible with the original. </p><p>As of 2006 Sleipnir had 6% <a href="/facts/Market_share/kvXSlhlB">market share</a> in Japan.<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a> </p><p>Sleipnir was one of twelve browsers originally offered in a browser ballot screen on the EU edition of Windows 7 (and XP and Vista with an update),<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a><a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a> so users could choose between <a href="/facts/Internet_Explorer/uL8a4Y5l">Internet Explorer</a> and other browsers during the installation process. </p><p>The stable version 5.0 was released on December 24, 2013 with the latest <a href="/facts/Blink_(browser_engine)/uL9vhKbv">Blink engine</a>.<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a> </p> <h2 id="features">Features</h2> <p>In the Windows version, the browser's <a href="/facts/Browser_engine/wLna3ate">layout engine</a> can be changed. <a href="/facts/Internet_Explorer/uL8a4Y5l">Internet Explorer</a>'s <a href="/facts/Trident_(layout_engine)/pwBEAjzj">Trident</a> and <a href="/facts/Mozilla/FevL9Itn">Mozilla</a>'s <a href="/facts/Gecko_(layout_engine)/HXINMkgW">Gecko</a> were supported. As of version 3.5.0.4000, support for the <a href="/facts/WebKit/YrP9vbIj">WebKit</a> rendering engine was implemented and Gecko rendering engine support was terminated.<a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a> Other features include <a href="/facts/Tab_(GUI)/YswKP5Mg">tab</a> grouping, <a href="/facts/Mouse_gesture/D5Psb3hN">mouse gestures</a>, <a href="/facts/Page_zooming/djwGFS71">page zooming</a>, a search bar, <a href="/facts/Greasemonkey/tvlvx5qB">Greasemonkey</a>-like user script support, and plugin support. Bookmarks on Sleipnir can be synced with different platform, using a function called Fenrir Pass.<a class="footnote-ref" id="fnref:11" href="#fn:11"><sup>11</sup></a> </p><p>Sleipnir version 5 and onward introduce a proprietary <a href="/facts/Subpixel_rendering/0o1TC9sl">text rendering</a> visually resembling Mac OS text rendering. The feature is not mentioned in their Mac feature set.[<i>original research?</i>] </p> <h2 id="platforms">Platforms</h2> <p>Sleipnir 2 for Windows: Sleipnir 2 features customizable functions and add-ons created by users. Sleipnir 2 is one of the few browsers to still support <a href="/facts/Windows_98/6qtq4oJm">Windows 98</a>. </p><p>Sleipnir 3 for Windows: Includes tab options, tab groups, Touchpaging to flick between tabs using your mouse, and mouse gestures.<a class="footnote-ref" id="fnref:12" href="#fn:12"><sup>12</sup></a> </p><p>Sleipnir 3 for Mac: Switch tabs by swiping tabs left or right-click; Operate tabs using gestures; TiledTab - Pinch-in on the <a href="/facts/TrackPad/5BptytYa">TrackPad</a> to view a list of tabs; Hold And Go - Hold down on a link to open in the background; Ad Block; Tab groups for managing tabs; Sync bookmarks with other devices using Fenrir Pass; The standard full-screen with <a href="/facts/Mac_OS_X_Lion/CHyxXg8X">Mac OS X Lion</a><a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a> </p><p>Sleipnir 4 for Windows: Sleipnir 4 for Windows has introduced minor interface improvements; Smart Tabs - adding, positioning and deletion of tabs is determined based on relationship with previous and next tabs; 150 mouse gesture functions added; Google Chrome extensions support.<a class="footnote-ref" id="fnref:14" href="#fn:14"><sup>14</sup></a> </p><p>Sleipnir 4 for Mac: Thumbnail Tab Navigation - open tabs are not shrunk anymore, instead they are presented in a scrollable list, with tab titles appearing on mouse hover; Portal field - a bar with a double functionality of navigation bar and search; TiledTab - view mode that gives an overview of the opened tabs and allows sorting tabs into six groups; Improved gesture controls.<a class="footnote-ref" id="fnref:15" href="#fn:15"><sup>15</sup></a> </p><p>Sleipnir 5 for Windows: Sleipnir 5 for Windows has integrated all of the features introduced in Sleipnir 4 for Mac; Smooth OSX-like font rendering engine introduced; "Site Updates" feature shows personalized recommendations of articles from the often visited sites; Added touch screen support.<a class="footnote-ref" id="fnref:16" href="#fn:16"><sup>16</sup></a> </p><p>Sleipnir 6 for Windows: Sleipnir 6 for Windows adds FavTab for quick navigation to favorite sites;<a class="footnote-ref" id="fnref:17" href="#fn:17"><sup>17</sup></a> SmartSearch for searching via highlighting;<a class="footnote-ref" id="fnref:18" href="#fn:18"><sup>18</sup></a> resizable portal field.<a class="footnote-ref" id="fnref:19" href="#fn:19"><sup>19</sup></a> </p><p>Sleipnir 6.5 for Windows: Sleipnir 6.5 for Windows is a customizable web browser that offers advanced tab management, non-member social feeds, mouse gestures and privacy protection features. </p><p>Sleipnir Mobile: The following mobile versions of Sleipnir for smartphones have been released: <a href="/facts/Android_(operating_system)/nNyHb0xz">Android</a>, <a href="/facts/IOS/mK5cggH5">iOS</a>, <a href="/facts/Windows_Phone/khEg0rGT">and Windows Phone</a>. </p> <h2 id="reception">Reception</h2> <p>Early Gecko-based versions of Sleipnir for Windows scored positive reviews from <i><a href="/facts/CNET/FefqENNr">CNET</a></i> for the design and functionality, most noticeably, for the inclusion of gestures. “The action is very smooth and natural and a lot like scrolling through pages on your phone with your thumb.”<a class="footnote-ref" id="fnref:20" href="#fn:20"><sup>20</sup></a> The OSX version review by <i>MakeUseOf</i> followed generally the same line while additionally bringing attention to the convenient tab management.<a class="footnote-ref" id="fnref:21" href="#fn:21"><sup>21</sup></a> </p><p><i><a href="/facts/MacWorld/UMez5Tbn">MacWorld</a></i>, while reviewing Sleipnir 4 for Mac has praised how the URL bar was changed. “Opera pioneered that idea, but Sleipnir’s tabs remain constantly visible and strike a nice balance between being large enough to identify but small enough not to intrude on the main browser window.” Despite this, version 4 was criticized for its poor performance, compared to other browsers using <a href="/facts/WebKit/YrP9vbIj">WebKit</a>.<a class="footnote-ref" id="fnref:22" href="#fn:22"><sup>22</sup></a> </p><p>Later versions of Sleipnir received positive reviews from <i><a href="/facts/Softpedia/8u1I4nUj">Softpedia</a></i>, due to the browser's customizability, features and the availability of mobile versions. “Sleipnir proves to be a stable and fast web browser that comes with innovative functions and various customization possibilities. The extra security features, together with smartphone and web apps linking are features that make it a viable alternative to its more popular competitors.”<a class="footnote-ref" id="fnref:23" href="#fn:23"><sup>23</sup></a> </p><p>In 2012, multiple performance tests were performed by <i><a href="/facts/Tom%2527s_Hardware/mmvt16oL">Tom's Hardware</a></i>, where the Android version of Sleipnir was placed on the third spot as the best browser for Android, outrun by <a href="/facts/Dolphin_Browser/fQTCn9EL">Dolphin</a> and <a href="/facts/Maxthon/wDMua2TG">Maxthon</a>.<a class="footnote-ref" id="fnref:24" href="#fn:24"><sup>24</sup></a> </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/List_of_feed_aggregators/WE3SUDvT">List of feed aggregators</a></li> <li><a href="/facts/Comparison_of_feed_aggregators/WE3SUDvT">Comparison of feed aggregators</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="https://www.fenrir-inc.com/jp/news/?category=product">Official website</a> </li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Sleipnir 3 Web Browser for Windows / Mac". Fenrir Inc. Archived from the original on 2012-07-31. Retrieved 2012-05-25. <a href="https://web.archive.org/web/20120731023045/http://www.fenrir-inc.com/us/sleipnir/" target="_blank">https://web.archive.org/web/20120731023045/http://www.fenrir-inc.com/us/sleipnir/</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Corporate Symbol". Fenrir Inc. Archived from the original on 2012-07-12. <a href="https://archive.today/20120712133001/http://info.fenrir-inc.com/us/profile/symbol.html" target="_blank">https://archive.today/20120712133001/http://info.fenrir-inc.com/us/profile/symbol.html</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"Translators wanted for Windows, Mac and now the Mobile versions of Sleipnir web browser". Fenrir Inc. Developer's Blog. Archived from the original on 2016-06-24. <a href="https://web.archive.org/web/20160624133103/http://blog.fenrir-inc.com/us/2012/03/translators-wanted-for-windows-mac-mobile-sleipnir-web-browser.html" target="_blank">https://web.archive.org/web/20160624133103/http://blog.fenrir-inc.com/us/2012/03/translators-wanted-for-windows-mac-mobile-sleipnir-web-browser.html</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"About language support for each product". Archived from the original on 2016-03-20. Retrieved 2012-05-25. <a href="https://web.archive.org/web/20160320021134/http://www.fenrir-inc.com/us/sleipnir-family/languages.html" target="_blank">https://web.archive.org/web/20160320021134/http://www.fenrir-inc.com/us/sleipnir-family/languages.html</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>「Sleipnir」「PictBear」の作者のパソコンが盗難に遭い開発中止に!? [The computer of the author of "Sleipnir" and "PictBear" was stolen and the development was canceled!?] (in Japanese). Window Forest. 2004-11-18. <a href="「Sleipnir」「PictBear」の作者のパソコンが盗難に遭い開発中止に!?" target="_blank">「Sleipnir」「PictBear」の作者のパソコンが盗難に遭い開発中止に!?</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>フェンリル、タブブラウザ「Sleipnir」「Grani」のデフォルト検索エンジンをグーグルに:マーケティング [Fenrir Googles the default search engine for tab browsers "Sleipnir" and "Gani"] (in Japanese). CNET Japan. 2006-09-01. <a href="フェンリル、タブブラウザ「Sleipnir」「Grani」のデフォルト検索エンジンをグーグルに:マーケティング" target="_blank">フェンリル、タブブラウザ「Sleipnir」「Grani」のデフォルト検索エンジンをグーグルに:マーケティング</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>"Microsoft offers browser choices to Europeans". BBC News. 1 March 2010. <a href="http://news.bbc.co.uk/1/hi/technology/8537763.stm" target="_blank">http://news.bbc.co.uk/1/hi/technology/8537763.stm</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>Schofield, Jack (2009-12-16). "EU drops Microsoft browser charges with agreement on 'ballot screen'". The Guardian. <a href="https://www.theguardian.com/technology/blog/2009/dec/16/microsoft-eu-browser-settlement" target="_blank">https://www.theguardian.com/technology/blog/2009/dec/16/microsoft-eu-browser-settlement</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>"Released Sleipnir 5 for Windows with the latest Blink engine". Sleipnir Blog. 2013-12-24. Archived from the original on 2014-03-05. Retrieved 2014-05-28. <a href="https://web.archive.org/web/20140305195041/http://blog.sleipnirbrowser.com/2013/12/sleipnir-5-0-2-for-windows.html" target="_blank">https://web.archive.org/web/20140305195041/http://blog.sleipnirbrowser.com/2013/12/sleipnir-5-0-2-for-windows.html</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>"Sleipnir 3 for Windows α3 Web browser with WebKit released! Now more stable, and with a new design!". Fenrir Developer's Blog. 2012-05-17. Archived from the original on 2012-05-20. <a href="https://web.archive.org/web/20120520034112/http://blog.fenrir-inc.com/us/2012/05/sleipnir-3-alpha-3-web-browser-released.html" target="_blank">https://web.archive.org/web/20120520034112/http://blog.fenrir-inc.com/us/2012/05/sleipnir-3-alpha-3-web-browser-released.html</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> <li id="fn:11"><p>Clarke, Victor (2015-09-23). "Chrome, Firefox, Safari, Opera, Edge? Impressive Web Browser Alternatives". Smashing Magazine. Retrieved 2015-09-24. <a href="https://www.smashingmagazine.com/2015/09/chrome-firefox-safari-opera-edge-impressive-web-browser-alternatives/" target="_blank">https://www.smashingmagazine.com/2015/09/chrome-firefox-safari-opera-edge-impressive-web-browser-alternatives/</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></p></li> <li id="fn:12"><p>Clarke, Victor (2015-09-23). "Chrome, Firefox, Safari, Opera, Edge? Impressive Web Browser Alternatives". Smashing Magazine. Retrieved 2015-09-24. <a href="https://www.smashingmagazine.com/2015/09/chrome-firefox-safari-opera-edge-impressive-web-browser-alternatives/" target="_blank">https://www.smashingmagazine.com/2015/09/chrome-firefox-safari-opera-edge-impressive-web-browser-alternatives/</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></p></li> <li id="fn:13"><p>"Sleipnir". Mac App Store. <a href="https://apps.apple.com/us/app/sleipnir-browser/id475299388?mt=12" target="_blank">https://apps.apple.com/us/app/sleipnir-browser/id475299388?mt=12</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></p></li> <li id="fn:14"><p>"Sleipnir 4 for Windows". Fenrir Inc. Archived from the original on 2015-09-29. Retrieved 2015-10-20. <a href="https://web.archive.org/web/20150929002754/http://www.fenrir-inc.com/us/sleipnir/4/" target="_blank">https://web.archive.org/web/20150929002754/http://www.fenrir-inc.com/us/sleipnir/4/</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></p></li> <li id="fn:15"><p>Rodriguez, Jorge (2013-01-28). "Sleipnir 4: A Deconstructed Web Browser". Appstorm. Archived from the original on 2015-09-21. Retrieved 2015-10-09. <a href="https://web.archive.org/web/20150921005428/https://mac.appstorm.net/reviews/internet-reviews/sleipnir-4-a-deconstructed-web-browser/" target="_blank">https://web.archive.org/web/20150921005428/https://mac.appstorm.net/reviews/internet-reviews/sleipnir-4-a-deconstructed-web-browser/</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></p></li> <li id="fn:16"><p>"The luxury, advanced Web browser drawing text beautifully like professional tools on PC too – Sleipnir 5, released today!". Sleipnir Blog. 2013-11-21. Archived from the original on 2013-11-27. Retrieved 2015-10-20. <a href="https://web.archive.org/web/20131127075445/http://blog.sleipnirbrowser.com/2013/11/sleipnir-for-windows-5-0-0-released.html" target="_blank">https://web.archive.org/web/20131127075445/http://blog.sleipnirbrowser.com/2013/11/sleipnir-for-windows-5-0-0-released.html</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></p></li> <li id="fn:17"><p>"New feature "FavTab" allows quick navigation, even if 100 tabs are open! Released Sleipnir 6 for Windows". Sleipnir Blog. 2015-05-29. Archived from the original on 2014-07-17. Retrieved 2015-10-20. <a href="https://web.archive.org/web/20140717073519/http://blog.sleipnirbrowser.com/2014/05/sleipnir-6-0-0-for-windows-html.html" target="_blank">https://web.archive.org/web/20140717073519/http://blog.sleipnirbrowser.com/2014/05/sleipnir-6-0-0-for-windows-html.html</a> <a href="#fnref:17" class="footnote-back-ref">↩</a></p></li> <li id="fn:18"><p>"Released Sleipnir 6 for Windows (6.1)!". Sleipnir Blog. 2015-09-18. Retrieved 2015-10-20. <a href="http://blog.sleipnirbrowser.com/2014/09/sleipnir-6-1-0-for-windows.html" target="_blank">http://blog.sleipnirbrowser.com/2014/09/sleipnir-6-1-0-for-windows.html</a> <a href="#fnref:18" class="footnote-back-ref">↩</a></p></li> <li id="fn:19"><p>"Released Sleipnir 6 for Windows (6.1.5), Sleipnir 4 for Windows (4.4.1)!". Sleipnir Blog. 2015-02-19. Archived from the original on 2015-02-27. Retrieved 2015-10-20. <a href="https://web.archive.org/web/20150227133721/http://blog.sleipnirbrowser.com/2015/02/sleipnir-6-1-5-for-windows.html" target="_blank">https://web.archive.org/web/20150227133721/http://blog.sleipnirbrowser.com/2015/02/sleipnir-6-1-5-for-windows.html</a> <a href="#fnref:19" class="footnote-back-ref">↩</a></p></li> <li id="fn:20"><p>"Review: Sleipnir 4 has a different take on Web browsers". CNET. 2012-03-22. Retrieved 2015-11-09. <a href="http://download.cnet.com/Sleipnir/3000-2356_4-10472663.html" target="_blank">http://download.cnet.com/Sleipnir/3000-2356_4-10472663.html</a> <a href="#fnref:20" class="footnote-back-ref">↩</a></p></li> <li id="fn:21"><p>"Sleipnir – A Speedy And Stylish Web Browser [Mac]". MakeUseOf. 2012-04-30. Archived from the original on 2016-03-04. Retrieved 2015-11-09. <a href="https://web.archive.org/web/20160304052909/http://www.makeuseof.com/tag/sleipnir-speedy-stylish-web-browser-mac/" target="_blank">https://web.archive.org/web/20160304052909/http://www.makeuseof.com/tag/sleipnir-speedy-stylish-web-browser-mac/</a> <a href="#fnref:21" class="footnote-back-ref">↩</a></p></li> <li id="fn:22"><p>Alderman, Nathan (2013-04-09). "Review: Sleipnir 4 has a different take on Web browsers". Macworld. Retrieved 2015-11-09. <a href="http://www.macworld.com/article/2033178/review-sleipnir-4-has-a-different-take-on-web-browsers.html" target="_blank">http://www.macworld.com/article/2033178/review-sleipnir-4-has-a-different-take-on-web-browsers.html</a> <a href="#fnref:22" class="footnote-back-ref">↩</a></p></li> <li id="fn:23"><p>Verdeanu, Andrei (2014-02-09). "Sleipnir". Softpedia. Retrieved 2015-11-09. <a href="http://www.softpedia.com/get/Internet/Browsers/Sleipnir.shtml" target="_blank">http://www.softpedia.com/get/Internet/Browsers/Sleipnir.shtml</a> <a href="#fnref:23" class="footnote-back-ref">↩</a></p></li> <li id="fn:24"><p>Overa, Adam (2012-11-29). "Which Web Browser Should You Run On Your Android Device?". Tom’s Hardware. Retrieved 2015-11-09. <a href="http://www.tomshardware.com/reviews/android-web-browser-recommendation,3316-10.html" target="_blank">http://www.tomshardware.com/reviews/android-web-browser-recommendation,3316-10.html</a> <a href="#fnref:24" class="footnote-back-ref">↩</a></p></li> </ol>