diff --git a/Gruntfile.js b/Gruntfile.js
index 6c663a8a5d..31068766c1 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -217,7 +217,7 @@ module.exports = function (grunt) {
         src: ['scss/*.scss', '!scss/_normalize.scss']
       },
       docs: {
-        src: ['docs/assets/scss/*.scss', '!scss/_normalize.scss', '!docs/assets/scss/docs.scss']
+        src: ['docs/assets/scss/*.scss', '!docs/assets/scss/docs.scss']
       }
     },
 
diff --git a/docs/_data/browser-bugs.yml b/docs/_data/browser-bugs.yml
index a610d1b56f..0a52d6c92b 100644
--- a/docs/_data/browser-bugs.yml
+++ b/docs/_data/browser-bugs.yml
@@ -68,26 +68,6 @@
   origin: >
     Bootstrap#13453
 
--
-  browser: >
-    Firefox
-  summary: >
-    `max-width: 100%;` doesn't work inside tables.
-  upstream_bug: >
-    Mozilla#975632
-  origin: >
-    Bootstrap#10690
-
--
-  browser: >
-    Firefox
-  summary: >
-    Button elements with `width: 100%` become cropped in long tables.
-  upstream_bug: >
-    Mozilla#1060131
-  origin: >
-    Bootstrap#14320
-
 -
   browser: >
     Firefox
diff --git a/docs/components/forms.md b/docs/components/forms.md
index a7ce4062cf..0028c2b85f 100644
--- a/docs/components/forms.md
+++ b/docs/components/forms.md
@@ -819,3 +819,22 @@ Here's how it works:
 - We declare a `height` on the `<input>` for proper spacing for surrounding content.
 
 In other words, it's an entirely custom element, all generated via CSS.
+
+#### Translating or customizing the strings
+
+The [`:lang()` pseudo-class](https://developer.mozilla.org/en-US/docs/Web/CSS/:lang) is used to allow for easy translation of the "Browse" and "Choose file..." text into other languages. Simply override or add entries to the `$custom-file-text` SCSS variable with the relevant [language tag](https://en.wikipedia.org/wiki/IETF_language_tag) and localized strings. The English strings can be customized the same way. For example, here's how one might add a Spanish translation (Spanish's language code is `es`):
+
+{% highlight scss %}
+$custom-file-text: (
+  placeholder: (
+    en: "Choose file...",
+    es: "Seleccionar archivo..."
+  ),
+  button-label: (
+    en: "Browse",
+    es: "Navegar"
+  )
+);
+{% endhighlight %}
+
+You'll need to set the language of your document (or subtree thereof) correctly in order for the correct text to be shown. This can be done using [the `lang` attribute](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang) or the [`Content-Language` HTTP header](https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.12), among other methods.
diff --git a/scss/.csscomb.json b/scss/.csscomb.json
deleted file mode 100644
index 40695a4782..0000000000
--- a/scss/.csscomb.json
+++ /dev/null
@@ -1,304 +0,0 @@
-{
-  "always-semicolon": true,
-  "block-indent": 2,
-  "color-case": "lower",
-  "color-shorthand": true,
-  "element-case": "lower",
-  "eof-newline": true,
-  "leading-zero": false,
-  "remove-empty-rulesets": true,
-  "space-after-colon": 1,
-  "space-after-combinator": 1,
-  "space-before-selector-delimiter": 0,
-  "space-between-declarations": "\n",
-  "space-after-opening-brace": "\n",
-  "space-before-closing-brace": "\n",
-  "space-before-colon": 0,
-  "space-before-combinator": 1,
-  "space-before-opening-brace": 1,
-  "strip-spaces": true,
-  "unitless-zero": true,
-  "vendor-prefix-align": true,
-  "sort-order": [
-    [
-      "position",
-      "top",
-      "right",
-      "bottom",
-      "left",
-      "z-index",
-      "display",
-      "float",
-      "width",
-      "min-width",
-      "max-width",
-      "height",
-      "min-height",
-      "max-height",
-      "-webkit-box-sizing",
-      "-moz-box-sizing",
-      "box-sizing",
-      "-webkit-appearance",
-      "padding",
-      "padding-top",
-      "padding-right",
-      "padding-bottom",
-      "padding-left",
-      "margin",
-      "margin-top",
-      "margin-right",
-      "margin-bottom",
-      "margin-left",
-      "overflow",
-      "overflow-x",
-      "overflow-y",
-      "-webkit-overflow-scrolling",
-      "-ms-overflow-x",
-      "-ms-overflow-y",
-      "-ms-overflow-style",
-      "clip",
-      "clear",
-      "font",
-      "font-family",
-      "font-size",
-      "font-style",
-      "font-weight",
-      "font-variant",
-      "font-size-adjust",
-      "font-stretch",
-      "font-effect",
-      "font-emphasize",
-      "font-emphasize-position",
-      "font-emphasize-style",
-      "font-smooth",
-      "-webkit-hyphens",
-      "-moz-hyphens",
-      "hyphens",
-      "line-height",
-      "color",
-      "text-align",
-      "-webkit-text-align-last",
-      "-moz-text-align-last",
-      "-ms-text-align-last",
-      "text-align-last",
-      "text-emphasis",
-      "text-emphasis-color",
-      "text-emphasis-style",
-      "text-emphasis-position",
-      "text-decoration",
-      "text-indent",
-      "text-justify",
-      "text-outline",
-      "-ms-text-overflow",
-      "text-overflow",
-      "text-overflow-ellipsis",
-      "text-overflow-mode",
-      "text-shadow",
-      "text-transform",
-      "text-wrap",
-      "-webkit-text-size-adjust",
-      "-ms-text-size-adjust",
-      "letter-spacing",
-      "-ms-word-break",
-      "word-break",
-      "word-spacing",
-      "-ms-word-wrap",
-      "word-wrap",
-      "-moz-tab-size",
-      "-o-tab-size",
-      "tab-size",
-      "white-space",
-      "vertical-align",
-      "list-style",
-      "list-style-position",
-      "list-style-type",
-      "list-style-image",
-      "pointer-events",
-      "-ms-touch-action",
-      "touch-action",
-      "cursor",
-      "visibility",
-      "zoom",
-      "flex-direction",
-      "flex-order",
-      "flex-pack",
-      "flex-align",
-      "table-layout",
-      "empty-cells",
-      "caption-side",
-      "border-spacing",
-      "border-collapse",
-      "content",
-      "quotes",
-      "counter-reset",
-      "counter-increment",
-      "resize",
-      "-webkit-user-select",
-      "-moz-user-select",
-      "-ms-user-select",
-      "-o-user-select",
-      "user-select",
-      "nav-index",
-      "nav-up",
-      "nav-right",
-      "nav-down",
-      "nav-left",
-      "background",
-      "background-color",
-      "background-image",
-      "-ms-filter:\\'progid:DXImageTransform.Microsoft.gradient",
-      "filter:progid:DXImageTransform.Microsoft.gradient",
-      "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader",
-      "filter",
-      "background-repeat",
-      "background-attachment",
-      "background-position",
-      "background-position-x",
-      "background-position-y",
-      "-webkit-background-clip",
-      "-moz-background-clip",
-      "background-clip",
-      "background-origin",
-      "-webkit-background-size",
-      "-moz-background-size",
-      "-o-background-size",
-      "background-size",
-      "border",
-      "border-color",
-      "border-style",
-      "border-width",
-      "border-top",
-      "border-top-color",
-      "border-top-style",
-      "border-top-width",
-      "border-right",
-      "border-right-color",
-      "border-right-style",
-      "border-right-width",
-      "border-bottom",
-      "border-bottom-color",
-      "border-bottom-style",
-      "border-bottom-width",
-      "border-left",
-      "border-left-color",
-      "border-left-style",
-      "border-left-width",
-      "border-radius",
-      "border-top-left-radius",
-      "border-top-right-radius",
-      "border-bottom-right-radius",
-      "border-bottom-left-radius",
-      "-webkit-border-image",
-      "-moz-border-image",
-      "-o-border-image",
-      "border-image",
-      "-webkit-border-image-source",
-      "-moz-border-image-source",
-      "-o-border-image-source",
-      "border-image-source",
-      "-webkit-border-image-slice",
-      "-moz-border-image-slice",
-      "-o-border-image-slice",
-      "border-image-slice",
-      "-webkit-border-image-width",
-      "-moz-border-image-width",
-      "-o-border-image-width",
-      "border-image-width",
-      "-webkit-border-image-outset",
-      "-moz-border-image-outset",
-      "-o-border-image-outset",
-      "border-image-outset",
-      "-webkit-border-image-repeat",
-      "-moz-border-image-repeat",
-      "-o-border-image-repeat",
-      "border-image-repeat",
-      "outline",
-      "outline-width",
-      "outline-style",
-      "outline-color",
-      "outline-offset",
-      "-webkit-box-shadow",
-      "-moz-box-shadow",
-      "box-shadow",
-      "filter:progid:DXImageTransform.Microsoft.Alpha(Opacity",
-      "-ms-filter:\\'progid:DXImageTransform.Microsoft.Alpha",
-      "opacity",
-      "-ms-interpolation-mode",
-      "-webkit-transition",
-      "-moz-transition",
-      "-ms-transition",
-      "-o-transition",
-      "transition",
-      "-webkit-transition-delay",
-      "-moz-transition-delay",
-      "-ms-transition-delay",
-      "-o-transition-delay",
-      "transition-delay",
-      "-webkit-transition-timing-function",
-      "-moz-transition-timing-function",
-      "-ms-transition-timing-function",
-      "-o-transition-timing-function",
-      "transition-timing-function",
-      "-webkit-transition-duration",
-      "-moz-transition-duration",
-      "-ms-transition-duration",
-      "-o-transition-duration",
-      "transition-duration",
-      "-webkit-transition-property",
-      "-moz-transition-property",
-      "-ms-transition-property",
-      "-o-transition-property",
-      "transition-property",
-      "-webkit-transform",
-      "-moz-transform",
-      "-ms-transform",
-      "-o-transform",
-      "transform",
-      "-webkit-transform-origin",
-      "-moz-transform-origin",
-      "-ms-transform-origin",
-      "-o-transform-origin",
-      "transform-origin",
-      "-webkit-animation",
-      "-moz-animation",
-      "-ms-animation",
-      "-o-animation",
-      "animation",
-      "-webkit-animation-name",
-      "-moz-animation-name",
-      "-ms-animation-name",
-      "-o-animation-name",
-      "animation-name",
-      "-webkit-animation-duration",
-      "-moz-animation-duration",
-      "-ms-animation-duration",
-      "-o-animation-duration",
-      "animation-duration",
-      "-webkit-animation-play-state",
-      "-moz-animation-play-state",
-      "-ms-animation-play-state",
-      "-o-animation-play-state",
-      "animation-play-state",
-      "-webkit-animation-timing-function",
-      "-moz-animation-timing-function",
-      "-ms-animation-timing-function",
-      "-o-animation-timing-function",
-      "animation-timing-function",
-      "-webkit-animation-delay",
-      "-moz-animation-delay",
-      "-ms-animation-delay",
-      "-o-animation-delay",
-      "animation-delay",
-      "-webkit-animation-iteration-count",
-      "-moz-animation-iteration-count",
-      "-ms-animation-iteration-count",
-      "-o-animation-iteration-count",
-      "animation-iteration-count",
-      "-webkit-animation-direction",
-      "-moz-animation-direction",
-      "-ms-animation-direction",
-      "-o-animation-direction",
-      "animation-direction"
-    ]
-  ]
-}
diff --git a/scss/_custom-forms.scss b/scss/_custom-forms.scss
index dbb32d42e0..1c929e2c3a 100644
--- a/scss/_custom-forms.scss
+++ b/scss/_custom-forms.scss
@@ -218,8 +218,10 @@
   @include border-radius($custom-file-border-radius);
   @include box-shadow($custom-file-box-shadow);
 
-  &::after {
-    content: $custom-file-placeholder;
+  @each $lang, $text in map-get($custom-file-text, placeholder) {
+    &:lang(#{$lang})::after {
+      content: $text;
+    }
   }
 
   &::before {
@@ -233,9 +235,14 @@
     padding: $custom-file-padding-x $custom-file-padding-y;
     line-height: $custom-file-line-height;
     color: $custom-file-button-color;
-    content: $custom-file-button-label;
     background-color: $custom-file-button-bg;
     border: $custom-file-border-width solid $custom-file-border-color;
     @include border-radius(0 $custom-file-border-radius $custom-file-border-radius 0);
   }
+
+  @each $lang, $text in map-get($custom-file-text, button-label) {
+    &:lang(#{$lang})::before {
+      content: $text;
+    }
+  }
 }
diff --git a/scss/_variables.scss b/scss/_variables.scss
index 5142148148..1d7c67004b 100644
--- a/scss/_variables.scss
+++ b/scss/_variables.scss
@@ -404,10 +404,16 @@ $custom-file-border-width:  $border-width !default;
 $custom-file-border-color:  #ddd !default;
 $custom-file-border-radius: $border-radius !default;
 $custom-file-box-shadow:    inset 0 .2rem .4rem rgba(0,0,0,.05) !default;
-$custom-file-placeholder:   "Choose file..." !default;
-$custom-file-button-label:  "Browse" !default;
 $custom-file-button-color:  $custom-file-color !default;
 $custom-file-button-bg:     #eee !default;
+$custom-file-text: (
+  placeholder: (
+    en: "Choose file..."
+  ),
+  button-label: (
+    en: "Browse"
+  )
+) !default;
 
 
 // Form validation icons