Since upgrading to 3.6.6 I noticed a severe degradation of performance on a page with Flash. It takes about 10-20 sec for Firefox to open a new link from such a page or perform other actions. Scrolling the page out of an embedded Flash object frees up CPU and makes it normal back again. Before the upgrade I did not have such a severe problem with the same page, although Flash did take substantial CPU power to render the animation. I would like this problem fixed or learn how to downgrade to 3.5.x (not sure which version I had) == URL of affected sites == http://www.lotro-russia.com