User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_8; en-us) AppleWebKit/531.21.8 (KHTML, like Gecko) Version/4.0.4 Safari/531.21.10 Build Identifier: 3.6.6 Without warning, version 3.6.6 was initiated on my mac 10.5.8 this morning. Now, my browsing capabilities and computer action in general is severely slowed. Reproducible: Always
Please provide specific things that are slow. Also try Firefox's troubleshooting extensions and themes and or a new profile as outlined in http://support.mozilla.com/en-US/kb/Basic+troubleshooting
looks like op is not here around, if you can reproduce, feel free to reopen it!