I searched for this, but I have not been able to find any solution to the issue of Flash freezing browsers on Leopard. A number of people seem to be having this issue with Flash 10. I have a MacBook with 10.5.6 and all updates, and the latest flash from Adobe. Using Safari or Firefox, I am unable to display sites with flash. For example, when going to http://www.mlb.com, the page begins to load, and hangs at the end, with a spinning cursor. Only option is to force quit. Deleting flash allows the page to display, but obviously w/o flash. Reinstalling flash (version 9 or 10), brings back the freeze. Other machines I have (MBP) with the same software, work fine. Creating a new user has the same issue. Restart, and Repairing permissions has no effect... Everything was working fine last night, and nothing significant has changed since then... Any suggestions?