Hi, this is NOT any sort of support request. i dont care about solving the issue. im just going to back to the latest 3.x.x. today i upgraded from the latest 3.x.x version of firefox to version 4. i used firefox's updater on my 2.66 ghz i7 17 inch macbook pro (10.6.6) and here's what has gone on since: 1. firefox cant run for more than 10 minutes before becoming unresponsive and hogging CPU, turning on my fans. 3.x.x almost never did this since i got my MBP in august 2010 2. all my history, bookmarks everything vanished after the update. also firefox does not store any history either while browsing or anything. 3. everytime i load firefox the stupid welcome to version 4 page pops up and pushes my home page tab to the side. every time no matter what. 4. i had 3 addons before updating: force tls, flashblock and noscript. none of them show up in any add on preferences yet they still appear to be partially working. 5. netflix streaming stopped working. i just get looped thru a stupid install / restart to "close and reopen firefix in 32 bit mode". just curious is anyone else have any issues like these? kind of like they botched the mac version or something? maybe it's just me.