So I'm not entirely sure if this is coincidence, bugs, or something else caused by the Windows 10 Anniversary update. If my firefox is kept open for a period of time (ranging from half a hour to 3 hours), it begins to slow down. I exit FireFox and relaunch it, only for it to be extremely slowed down. I found it odd, as the only things running on my computer on most of the times was Skype and FireFox. So i get curious and close skype. The second i do, my firefox starts working at normal speed, its responsiveness back to normal, no input lag, etc. So curious, i tried to replicate this circumstance a few times.... I managed to it consistently, albeit the time before it slowed was vastly different per test. As a note, my average speed for launching Firefox is about 10-11 seconds before its 'ready'. My average speed with this bug is 45 seconds... Is this a issue with skype, with Firefox, or with the anniversary update? Note: I do not have any skype plugins installed.