Google Slides Microsoft Office-compatible document formats such as Word and Excel. Improvements based on DocVerse were announced and deployed in April 2010. In June 2012, Google acquired Quickoffice, a "leader in office productivity solutions", with particular emphasis on Quickoffice's "seamless interoperability with popular file formats". In October 2012, Google Presentations was renamed Google Slides and a Chrome app was released, which provided shortcuts to Slides on Chrome's new tab page. Google Slides is available as a web application supported on Google Chrome, Mozilla Firefox, Internet Explorer, Microsoft Edge, and Apple Safari web browsers. Users can access presentations, as well as other files,
Firefox 4 time. Also on that date, the browser’s usage share was higher than all versions of Safari, Opera and older versions of Firefox with the exception of Firefox 3.6. As a reference, Internet Explorer 9’s usage share first exceeded that of Internet Explorer 6 on May 1, 2011 (48 days after release), and Internet Explorer 9 became the second most used version of Internet Explorer for the first time on May 22, 2011 (69 days after release). According to StatCounter, Firefox 4 reached its usage share peak of 16.7% on June 19, 2011. After that date, it started to decline due