UserCSS for Firefox.

userContent.css

/**
 * UserCSS for Firefox.
 * https://gist.github.com/hyeonseok/7243239
 *
 * ln -s ~/Dropbox/src/firefox-usercss/userContent.css /Users/hyeonseok/Library/Application\ Support/Firefox/Profiles/{USER_PROFILE}/chrome/userContent.css
 */

* {
	-webkit-touch-callout: text !important;
	-webkit-user-select: text !important;
	-khtml-user-select: text !important;
	-moz-user-select: text !important;
	-ms-user-select: text !important;
	user-select: text !important
}

/* http://hyeonseok.com/soojung/usability/2011/11/15/682.html */
input[type=text] {
	ime-mode: auto !important;
}

/* http://stackoverflow.com/questions/18262887/usercontent-css-to-get-fixed-width-font-in-firefox */
@-moz-document domain(mail.google.com) {
	.gt {
		font-size: 75% !important;
	}
	.gs .ii {
		font-family: Monaco, monospace !important;
	}
}
@-moz-document domain() {
	.editable.LW-avf {
		font-family: Monaco, monospace !important;
		font-size: 75% !important;
	}
}

@-moz-document domain(localize.mozilla.org) {
	.translation-text, 
	.translate-translation .translation {
		font-family: Monaco, monospace;
	}
}

@-moz-document domain(news.khan.co.kr) {
	iframe, 
	#adbox, 
	#FloatLayer1, 
	.ad_top, 
	.wing_todaynews, 
	#ad_banner, 
	.ad_movFocus, 
	#banner_view_b, 
	.ad_two_top, 
	#scrollDiv, 
	div[class^=banner] {
		display: none !important;
	}
}

@-moz-document domain(pressian.com) {
	#about_scroll_ad, 
	#fx_ad, 
	#newsBODY > div[style="float:right;margin-left:10px;"]:first-child, 
	#btwColumn, 
	#subColumn2, 
	#google_sky_ad {
		display: none !important;
	}
}

@-moz-document domain(hani.co.kr) {
	#left_wing, 
	#right_wing, 
	#scrollDiv, 
	#ad_box01, 
	#ad_box02, 
	#laAdArea, 
	#realclick_view, 
	#aswift_0_expand, 
	#ad_kisa_t01, 
	#foot-fix, 
	iframe {
		display: none !important;
	}
}

@-moz-document domain(seoul.co.kr) {
	.hed_ad, 
	#sbaAboutDiv, 
	#eMartDiv, 
	.atic_banner, 
	#hnsIframe, 
	#InbnetIconAdFrame, 
	.aside, 
	.today, 
	.hotphoto, 
	[name=edailynews] {
		display: none !important;
	}
}

@-moz-document domain(dt.co.kr) {
	#top_ad, 
	#soeaFrame_, 
	#soeaFrame2_, 
	#left_skyWingBanner, 
	#right_skyWingBanner, 
	#dt_banner_layout {
		display: none !important;
	}
}

@-moz-document domain(sisainlive.com) {
	#articleBody table[width="320"], 
	ins.adsbygoogle, 
	#iwm_ti_wrap, 
	#scrollDiv, 
	#ad_scrollBanner2, 
	#scroll2_m, 
	#iwm_ba_x25, 
	#iwm_float_wrapper {
		display: none !important;
	}
}

@-moz-document domain(chosun.com) {
	[class^="art_ad_"], 
	iframe, 
	#iwm_float_wrapper {
		display: none !important;
	}
}

@-moz-document domain(nocutnews.co.kr) {
	[class^="ad_"], 
	iframe, 
	#realclick_view_float, 
	.btn_todaynewsgo, 
	#scrollDiv, 
	#ShapeLayer1 {
		display: none !important;
	}
}

@-moz-document domain(zdnet.co.kr) {
	.top_ad, 
	#scrollDiv, 
	#divMenu, 
	#divMenu2, 
	#main_right_Floating_banner, 
	#zdnet_banner_layout, 
	.right_bn1, 
	.right_bn2, 
	.right_bn3, 
	.right_bn4, 
	.ad, 
	#openmatch_ad {
		display: none !important;
	}
}

@-moz-document domain(asiatoday.co.kr) {
	iframe, 
	#wp_adbn_root, 
	body > div[style="width:100%;margin:0 auto"], /*"*/
	#scrolling_banner, 
	#scrolling_left_banner, 
	.aside_google_304, 
	#scrollDiv, 
	#wingBnLeft, 
	#wingBnRight, 
	#enliple_ad, 
	div[class^="banner_1024_1024_"], 
	.view_ad_658, 
	#tmpILSA_Container, 
	#iwm_float_wrapper, 

	#section_top {
		display: none !important;
	}
}

@-moz-document domain(etnews.com) {
	iframe, 
	#wingBanner, 
	#winxplayer, 
	#FloatLayer1, 
	#FloatLayer2, 
	#scrollDiv, 
	.top_ad_art, 
	.naver_btn {
		display: none !important;
	}
}