I would dump FireFox and use Chrome...I stop using FireFox after version twenty something...they keep updating it - but there are certain features that do not work well with websites...I have it as a Browser - but I don’t use it...nor do I use IE....so far - I’ve had nothing but success with Chrome - but if you use it - you need to secure it and turn a bunch of stuff off so it does not track and store what you do...session cookie theft can lead to problems...just my observations over the last year...
I recently dumped Chrome for FireFox...LOL! Chrome took forever to load but with that being said, FireFox is giving me problems too.........Maybe it's just my computer.
For a while, I was recommending Palemoon 32-bit because it would allow the Firefox extensions/add-ons to work.
However, when it went from ver 24 to 25, I got messages that several extensions were not compatible.
Dang!!!! Firefox’s rapid release insanity was bad enough. Now even Palemoon has hit the wall.
The extensions were more important, as they are usable tools, than the latest greatest browser upgrade. Thus, I am now stuck at ver 24.7 of Palemoon.
It is sad to say, but with Win7, I find that I use IE9 more and more because it doesn’nt seem to have the compatibility complications Firefox/Palemoon have extensions, PDFs, Flash, etc. I cannot upgrade beyond IE9, because the later versions kill my IE-based tabbed browser and its add-on tools.