After upgrading to version 3.6.12 I can no longer open PHP web pages from my hard drive. When I create or edit web pages I view them from my hard drive first before uploading, as many webmasters do to look for errors before taking them live. I can view PHP pages online, but from my hard drive it just spawns endless empty tabs. Instead of just opening the page it asked me what to open it with, thinking the PHP web page is a script. It was working fine before the upgrade. I had a page open that I wanted to edit, which it reopened when my browser restarted. Then I edited the page. All I did was add a link to it. Then I hit the refresh button to see the change and instead of reloading the page, FF asked me what to do with the PHP script, prompting me to save it or choose what program to open it with. I selected to view it with FF and it just spawned endless tabs. They wouldn't stop. Had to shut down FF and it probably had 40 tabs opened with nothing on them. I tried other PHP pages from my hard drive that opened fine before, but it did the same thing with them. I tried finding help online and I see others have had the same problem, but no solution was offered that worked. I tried rebooting, same story, it wants to know what to do with the PHP script. I'm being forced to use another browser, so I'm going to go download Chrome now. If this probably isn't fixed soon I'll simply give up on FF. It's not worth the aggravation. I can't tell you how much TIME I've wasted today -- HOURS. Very disappointed.