Update 2.7 works GREAT with Firefox v32 on Mac. Thank you so much for the time and effort you've put into this plugin... and also putting out such a quick fix for the bug in the latest Firefox release.
I use this constantly. Be it a web dev or netadmin, Firefox aggressively caches and can make you crazy as you develop content or have a lot of DNS changes. This makes it so easy to just get things working again.