http://flashblock.mozdev.org/ appears to have solved this problem for me. Firefox 2.0.0.5 on Kubuntu 7.04 on a 2.8GHz Celeron with 1GB RAM.
Related bugs: https://bugzilla.mozilla.org/buglist.cgi?query_format=specific&order=relevance+desc&bug_status=__open__&product=Firefox&content=flash+cpu+perf+slow+freeze
http:// flashblock. mozdev. org/ appears to have solved this problem for me. Firefox 2.0.0.5 on Kubuntu 7.04 on a 2.8GHz Celeron with 1GB RAM.
Related bugs: https:/ /bugzilla. mozilla. org/buglist. cgi?query_ format= specific& order=relevance +desc&bug_ status= __open_ _&product= Firefox& content= flash+cpu+ perf+slow+ freeze