Sun Cult Worldwide Sunrise, Sunset, Twilight Times and Moon Phase Calculator as a Mozilla Extension. The latest version of Firefox OS Simulator, version 4.0, was released on J49 and announced on July 11, 2013.įirefox 42 free download. In December 2012, Mozilla rolled out another update and released Firefox OS Simulator 1.0, which can be downloaded as an add-on for Firefox. Firefox is built on top of the powerful new Gecko platform, resulting in a safer, easier to use and more personal product.Mozilla plans to crowdsource its performance data to learn more about how the browser performs in real-world situations. Chosen solution Hi BestFashion, unless one of your add-ons is moving it, the locations of these two bars are identical in Firefox 42 and Firefox 44. I would like to download Firefox 42 from Firefox 44.x has moved the bookmarks bar to the side and I hate it.