I have been experiencing frequent slowness while using Firefox. * Clicking links causes loading for a long time, but doesn't open the page when the load finishes. It stays on the same page, requiring me to click the link a second time to make it work. Sometimes loading never finishes at all. * Videos on Youtube require frequent buffering, with videos I used to be able to watch in one sitting now pausing to load every few minutes or automatically dropping in quality. * Images and thumbnails occassionally don't display or only partially load. I have had this problem before, and it usually goes away after a few days, but it has been happening more frequently lately. The last time I asked on this forum, someone suggested making a new profile, but the last time I tried that, it did not solve the problem. I have briefly tried using Chrome instead and noticed some of the same issues. Is it possible the problem is with my computer instead? My McAfee virus scan has not found any problems.