Google crome and mozilla firefox?

Hey guys ive been using firefox and google crome for some time now and now for some reason they dont work properly.My google crome sometimes crashes and sometimes when i go on youtube on mozilla the buffer bar doesnt work.So if i want to skip to a part it has to buffer.Any ideas?|||no idea, sorry. Maybe just reinstall everything|||Clear the cache %26amp; temporary internet files folder. Use some freeware like CCleaner or Trailware like Ace Utilities to do this job. Also have a better AV.|||Make sure you've the latest version of Flash Player :) You can get it from here: get.adobe.com/flashplayer/ I'm sure that will solve your problem :)|||get the latest mozilla browser and update flashplayer.