Firefox 3.0 recorded usage share of web browsers. Estimates of Firefox 3.0's global market share were generally in the range of 4–5%, and then dropped as users migrated to Firefox 3.5 and later Firefox 3.6. Partially as a result of this, between mid-December 2009 and the end of January 2010, Firefox 3.5 was the most popular browser (when counting individual browser versions), passing Internet Explorer 7. Mozilla ended support for Firefox 3 on March 30, 2010 with the release of 3.0.19. Firefox 3.0 was developed under the codename "Gran Paradiso". This, like other Firefox codenames, is the name of an actual place;
Kogan.com the combined time of designing for Chrome, Safari and Firefox." Kogan accepted that it was unlikely that anyone would actually pay the charges, stating that the goal of the campaign was to encourage users to download a more up-to-date version of Internet Explorer, or a different browser. The 'tax' was the most talked about topic on social media service Twitter on the day following its launch. Several weeks later, search results for kogan.com disappeared from Microsoft Bing search results, with Kogan stating "We hope Microsoft were not too offended by what we did with the IE7 tax and this is