Posted 18 October 2011 - 11:25 PM
I have already upgraded from IE7 to IE9 a while ago, with No problems on my Vista machine. I mostly use Firefox and occasionally use Google Chrome. The only problem I have experienced with the IE9 in regards to slow load up is from all of the addons/plugins. However IE9 has a feature that lets you disable the addons/plugins that are causing the slow load ups. Also it lets you set adjust the time at which it will let you know the browser is taking too long. For example; on my IE9 I currently have it set a 1.5 seconds load up time. If it takes longer than that IE9 lets me know and it will show me all of the addons and plugins that are installed and how much time they are taking. It will let me disable all of them or each one of them individually until the time gets below the set load-up time of 1.5 seconds.
But, I also continue to have some problems with the browser crashing on me at times. I believe it is due to all of the added programs on my computer, some of them are most likely conflicting with each other at times, also I think Internet Explorer get a little overloaded with data at times and freezes up for a few seconds. I also have had problems with Adobe Flash installing/crashing, do not know if it is IE9 related, conflict w/ another program and IE9 related, or my computer.
As for Firefox, I have not had as many problems with it as I have had with Internet Explorer. But, As with Internet Explorer, I think some of the programs on my computer conflict with each other and then cause Firefox to freeze up and or crash temporarily. Also not all of the addons/plugins are compatible with Firefox. About the only major problem I have had and do have is the adobe flash player keeps crashing when playing the online games.
Those are the pros and cons and problems I have experienced with IE9 and Firefox on my specific computer. I hope that helps.