My QA Testing Day Contribution-2017 January Firefox 51 Beta 12 Test day - 06/01/2017 Firefox 52.0 Aurora Test day - 20/01/2017 February Firefox 52 Beta 3 Test day - 03/02/2017 Firefox 52 Beta 7 Test day - 17/02/2017 March Firefox 53.0 Aurora Testday - 03/03/2017 Firefox 53 Beta 3 Testday - 17/03/2017 Firefox 53 Beta 8 Testday - 31/03/2017 April Firefox 54 Beta 3 Testday - 28/04/2017 May Firefox 54 Beta 7 Testday - 12/05/2017 June Firefox 55 Beta4 Testday - 23/06/2017 July Firefox 55 Beta 7 Test Day - 07/07/2017 Firefox Developer Edition 55 beta 11 Test Day - 21/07/2017 August Firefox 56 Beta 4 Testday - 17/08/2017 September ...