Wanderers tweaking issues (A responsive inconsistency and a footer challenge)

Hey guys, I am working with Wanderers on my site, and I absolutely love it, so once again thank you for sharing such a great and lean template with us for free!

Now I have been able to modify it quite a bit with a lot of success using the custom.css... however, I just noticed today that there are two responsive inconsistencies on Firefox for Mac that arent found in Chrome for Mac.

Note: As I have customized things, I understand if you cannot help me. However, I would appreciate if both Stackideas designers and Community members could take a min to look at my site and see if they can spot an obvious css issue or something.

Basically on Firefox for Mac I cannot resize the Window down all the way, at a certain point is just gives a horizontal scroll instead. Also, the footer is compressed to the left, rather than being centered and full width..

The footer issue happened when I tried to add this:

.container, .navbar-static-top .container, .navbar-fixed-top .container, .navbar-fixed-bottom .container {
width: 90%;
}

The resizing/responsive issue happened out of the blue. I am inclined to think that it is related to a module or plugin, rather than a css tweak... as I just noticed the issue an hour ago and it has been working fine for weeks. However, I could be wrong.

I attached screenshots of both chrome and firefox so that you can see the inconsistencies.

Note: URL is http://statusselect.com (Ignore the shitty frontpage which is under construction... although if you have good design tips on how to organize the frontpage, or how to setup a nice colorscheme, feel free to share)