The development process suffered from major problems related to the Gecko backend. Notably, the release cycles of the two projects did not line up efficiently. Also, Mozilla increasingly disregarded third party software that wished to make use of Gecko, until it became viewed as an integrated Firefox component. To address these issues, in July 2007, the Epiphany team added support for WebKit as an alternative rendering engine. On , the team announced that it would remove the ability to build it using Gecko and proceed using only WebKit.