A Stylish userstyle for nature.com (particularly the papers):
@namespace url(http://www.w3.org/1999/xhtml);
@-moz-document domain("www.nature.com") {
#constrain .constrain {
max-width:100% !important;
}
#content{
width:100% !important;
}
#content,
#extranav,
.image-user-services,
.publications-search{
float:left !important;
}
#content-journalnav{
max-width:62em !important;
padding: 1em !important;
}
#journalnav,
.ad-rh,
.accessibility-login-wrap,
.user-services,
#natprod,
#natjob,
#extranav .links{
display:none !important;
}
li{
padding-bottom: 0.5em !important;
}
h2{
padding-bottom: 0.5em !important;
}
}
Don't forget to set your minimum font size (Firefox→Preferences→Content→Fonts&Colors→Advanced) to something readable - mine's 13, but it depends on your default font and screen size/resolution.
Example page