diff --git a/CHANGELOG.md b/CHANGELOG.md
index c39d350cb..4555914bc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 **ccd0**:
 - Support expansion of .webm videos.
+- Support hover for .webm videos.
+- Add .webm to supported posting types.
+- Add option to enable/disable sound.
 - Update archives with data from MayhemYDG fork.
 
 ### v2.9.11 
diff --git a/builds/4chan-X.meta.js b/builds/4chan-X.meta.js
index dad0b6be8..636db037a 100755
--- a/builds/4chan-X.meta.js
+++ b/builds/4chan-X.meta.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.5.0
+// @version      1.5.1
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
diff --git a/builds/appchan-x.user.js b/builds/appchan-x.user.js
index 145456160..b31984f18 100644
--- a/builds/appchan-x.user.js
+++ b/builds/appchan-x.user.js
@@ -172,7 +172,7 @@
       },
       'Images and Videos': {
         'Image Expansion': [true, 'Expand images / videos.'],
-        'Image Hover': [true, 'Show full image on mouseover.'],
+        'Image Hover': [true, 'Show full image / video on mouseover.'],
         'Image Hover in Catalog': [false, 'Show a floating expanded image on hover in the catalog.'],
         'Gallery': [true, 'Adds a simple and cute image gallery.'],
         'Sauce': [true, 'Add sauce links to images.'],
@@ -184,7 +184,8 @@
         'Fappe Tyme': [false, 'Hide posts without images when toggled. *hint* *hint*'],
         'Werk Tyme': [false, 'Hide all post images when toggled.'],
         'Autoplay': [true, 'Videos begin playing immediately when opened inline.'],
-        'Show Controls': [true, 'Show native seek and volume controls on videos. Contract videos when dragged to the left.']
+        'Show Controls': [true, 'Show native seek and volume controls on videos. Contract videos when dragged to the left.'],
+        'Allow Sound': [true, 'Allow sound in inline videos.']
       },
       'Menu': {
         'Menu': [true, 'Add a drop-down menu to posts.'],
@@ -6684,7 +6685,9 @@
       if (e.type === 'keydown' && e.keyCode !== 13 || e.target.nodeName === "TEXTAREA") {
         return;
       }
-      $.rm(this.el);
+      if (this.el.parentNode === Header.hover) {
+        $.rm(this.el);
+      }
       $.off(this.root, this.endEvents, this.hoverend);
       $.off(d, 'keydown', this.hoverend);
       $.off(this.root, 'mousemove', this.hover);
@@ -8597,7 +8600,7 @@
   };
 
   QR = {
-    mimeTypes: ['image/jpeg', 'image/png', 'image/gif', 'application/pdf', 'application/x-shockwave-flash', ''],
+    mimeTypes: ['image/jpeg', 'image/png', 'image/gif', 'application/pdf', 'application/x-shockwave-flash', 'video/webm', ''],
     init: function() {
       var con, sc;
       this.db = new DataBoard('yourPosts');
@@ -9030,21 +9033,25 @@
     },
     checkDimensions: function(file, isSingle, max) {
       var img;
-      img = new Image();
-      img.onload = (function(_this) {
-        return function() {
-          var height, width;
-          height = img.height, width = img.width;
-          if (height > QR.max_heigth || width > QR.max_heigth) {
-            return QR.error("" + file.name + ": Image too large (image: " + img.height + "x" + img.width + "px, max: " + QR.max_heigth + "x" + QR.max_width + "px)");
-          }
-          if (height < QR.min_heigth || width < QR.min_heigth) {
-            return QR.error("" + file.name + ": Image too small (image: " + img.height + "x" + img.width + "px, min: " + QR.min_heigth + "x" + QR.min_width + "px)");
-          }
-          return QR.handleFile(file, isSingle, max);
-        };
-      })(this);
-      return img.src = URL.createObjectURL(file);
+      if (/^image\//.test(file.type)) {
+        img = new Image();
+        img.onload = (function(_this) {
+          return function() {
+            var height, width;
+            height = img.height, width = img.width;
+            if (height > QR.max_heigth || width > QR.max_heigth) {
+              return QR.error("" + file.name + ": Image too large (image: " + img.height + "x" + img.width + "px, max: " + QR.max_heigth + "x" + QR.max_width + "px)");
+            }
+            if (height < QR.min_heigth || width < QR.min_heigth) {
+              return QR.error("" + file.name + ": Image too small (image: " + img.height + "x" + img.width + "px, min: " + QR.min_heigth + "x" + QR.min_width + "px)");
+            }
+            return QR.handleFile(file, isSingle, max);
+          };
+        })(this);
+        return img.src = URL.createObjectURL(file);
+      } else {
+        return QR.handleFile(file, isSingle, max);
+      }
     },
     handleFile: function(file, isSingle, max) {
       var post, _ref;
@@ -10046,7 +10053,7 @@
             return;
           }
           this.file.newName = this.filename.replace(/[/\\]/g, '-');
-          if (!/\.(jpe?g|png|gif|pdf|swf)$/i.test(this.filename)) {
+          if (!/\.(jpe?g|png|gif|pdf|swf|webm)$/i.test(this.filename)) {
             this.file.newName += '.jpg';
           }
           return this.updateFilename();
@@ -10765,9 +10772,12 @@
       }
       $.addClass(thumb, 'expanding');
       naturalHeight = isVideo ? 'videoHeight' : 'naturalHeight';
-      if (post.file.fullImage) {
+      if (img = post.file.fullImage) {
+        $.rmClass(img, 'ihover');
+        $.addClass(img, 'full-image');
+        img.controls = img.parentNode !== thumb.parentNode;
         $.asap((function() {
-          return post.file.fullImage[naturalHeight];
+          return img[naturalHeight];
         }), function() {
           return ImageExpand.completeExpand(post);
         });
@@ -10819,7 +10829,7 @@
       file = post.file;
       video = file.fullImage;
       file.videoControls = [];
-      video.muted = true;
+      video.muted = !Conf['Allow Sound'];
       if (video.controls) {
         contract = $.el('a', {
           textContent: 'contract',
@@ -10972,8 +10982,8 @@
       }
     },
     node: function() {
-      var _ref;
-      if (!((_ref = this.file) != null ? _ref.isImage : void 0)) {
+      var _ref, _ref1;
+      if (!(((_ref = this.file) != null ? _ref.isImage : void 0) || ((_ref1 = this.file) != null ? _ref1.isVideo : void 0))) {
         return;
       }
       return $.on(this.file.thumb, 'mouseover', ImageHover.mouseover);
@@ -10986,21 +10996,46 @@
       return $.on(this.nodes.thumb, 'mouseover', ImageHover.mouseover);
     },
     mouseover: function(e) {
-      var el, post;
+      var el, isVideo, naturalHeight, post, thumb;
       post = $.hasClass(this, 'thumb') ? g.posts[this.parentNode.dataset.fullID] : Get.postFromNode(this);
-      el = $.el('img', {
-        id: 'ihover',
-        src: post.file.URL
-      });
+      isVideo = post.file.isVideo;
+      if (post.file.fullImage) {
+        el = post.file.fullImage;
+        $.rmClass(el, 'full-image');
+        $.addClass(el, 'ihover');
+      } else {
+        el = $.el((isVideo ? 'video' : 'img'), {
+          className: 'ihover',
+          src: post.file.URL
+        });
+        post.file.fullImage = el;
+        thumb = post.file.thumb;
+        $.after((isVideo && Conf['Show Controls'] ? thumb.parentNode : thumb), el);
+      }
       el.dataset.fullID = post.fullID;
-      $.add(Header.hover, el);
+      if (isVideo) {
+        el.loop = true;
+        el.controls = false;
+        el.muted = !Conf['Allow Sound'];
+        if (Conf['Autoplay']) {
+          el.play();
+        }
+      }
+      naturalHeight = post.file.isVideo ? 'videoHeight' : 'naturalHeight';
       UI.hover({
         root: this,
         el: el,
         latestEvent: e,
         endEvents: 'mouseout click',
         asapTest: function() {
-          return el.naturalHeight;
+          return el[naturalHeight];
+        },
+        cb: function() {
+          if (isVideo) {
+            el.pause();
+          }
+          $.rmClass(el, 'ihover');
+          return $.addClass(el, 'full-image');
         }
       });
       return $.on(el, 'error', ImageHover.error);
diff --git a/builds/crx.crx b/builds/crx.crx
index a1f50ec4d..a2a647a0a 100644
Binary files a/builds/crx.crx and b/builds/crx.crx differ
diff --git a/builds/crx/script.js b/builds/crx/script.js
index 049a1b670..da44bcaca 100644
--- a/builds/crx/script.js
+++ b/builds/crx/script.js
@@ -147,7 +147,7 @@
       },
       'Images and Videos': {
         'Image Expansion': [true, 'Expand images / videos.'],
-        'Image Hover': [true, 'Show full image on mouseover.'],
+        'Image Hover': [true, 'Show full image / video on mouseover.'],
         'Image Hover in Catalog': [false, 'Show a floating expanded image on hover in the catalog.'],
         'Gallery': [true, 'Adds a simple and cute image gallery.'],
         'Sauce': [true, 'Add sauce links to images.'],
@@ -159,7 +159,8 @@
         'Fappe Tyme': [false, 'Hide posts without images when toggled. *hint* *hint*'],
         'Werk Tyme': [false, 'Hide all post images when toggled.'],
         'Autoplay': [true, 'Videos begin playing immediately when opened inline.'],
-        'Show Controls': [true, 'Show native seek and volume controls on videos. Contract videos when dragged to the left.']
+        'Show Controls': [true, 'Show native seek and volume controls on videos. Contract videos when dragged to the left.'],
+        'Allow Sound': [true, 'Allow sound in inline videos.']
       },
       'Menu': {
         'Menu': [true, 'Add a drop-down menu to posts.'],
@@ -6738,7 +6739,9 @@
       if (e.type === 'keydown' && e.keyCode !== 13 || e.target.nodeName === "TEXTAREA") {
         return;
       }
-      $.rm(this.el);
+      if (this.el.parentNode === Header.hover) {
+        $.rm(this.el);
+      }
       $.off(this.root, this.endEvents, this.hoverend);
       $.off(d, 'keydown', this.hoverend);
       $.off(this.root, 'mousemove', this.hover);
@@ -8650,7 +8653,7 @@
   };
 
   QR = {
-    mimeTypes: ['image/jpeg', 'image/png', 'image/gif', 'application/pdf', 'application/x-shockwave-flash', ''],
+    mimeTypes: ['image/jpeg', 'image/png', 'image/gif', 'application/pdf', 'application/x-shockwave-flash', 'video/webm', ''],
     init: function() {
       var con, sc;
       this.db = new DataBoard('yourPosts');
@@ -9085,21 +9088,25 @@
     },
     checkDimensions: function(file, isSingle, max) {
       var img;
-      img = new Image();
-      img.onload = (function(_this) {
-        return function() {
-          var height, width;
-          height = img.height, width = img.width;
-          if (height > QR.max_heigth || width > QR.max_heigth) {
-            return QR.error("" + file.name + ": Image too large (image: " + img.height + "x" + img.width + "px, max: " + QR.max_heigth + "x" + QR.max_width + "px)");
-          }
-          if (height < QR.min_heigth || width < QR.min_heigth) {
-            return QR.error("" + file.name + ": Image too small (image: " + img.height + "x" + img.width + "px, min: " + QR.min_heigth + "x" + QR.min_width + "px)");
-          }
-          return QR.handleFile(file, isSingle, max);
-        };
-      })(this);
-      return img.src = URL.createObjectURL(file);
+      if (/^image\//.test(file.type)) {
+        img = new Image();
+        img.onload = (function(_this) {
+          return function() {
+            var height, width;
+            height = img.height, width = img.width;
+            if (height > QR.max_heigth || width > QR.max_heigth) {
+              return QR.error("" + file.name + ": Image too large (image: " + img.height + "x" + img.width + "px, max: " + QR.max_heigth + "x" + QR.max_width + "px)");
+            }
+            if (height < QR.min_heigth || width < QR.min_heigth) {
+              return QR.error("" + file.name + ": Image too small (image: " + img.height + "x" + img.width + "px, min: " + QR.min_heigth + "x" + QR.min_width + "px)");
+            }
+            return QR.handleFile(file, isSingle, max);
+          };
+        })(this);
+        return img.src = URL.createObjectURL(file);
+      } else {
+        return QR.handleFile(file, isSingle, max);
+      }
     },
     handleFile: function(file, isSingle, max) {
       var post, _ref;
@@ -10084,7 +10091,7 @@
             return;
           }
           this.file.newName = this.filename.replace(/[/\\]/g, '-');
-          if (!/\.(jpe?g|png|gif|pdf|swf)$/i.test(this.filename)) {
+          if (!/\.(jpe?g|png|gif|pdf|swf|webm)$/i.test(this.filename)) {
             this.file.newName += '.jpg';
           }
           return this.updateFilename();
@@ -10803,9 +10810,12 @@
       }
       $.addClass(thumb, 'expanding');
       naturalHeight = isVideo ? 'videoHeight' : 'naturalHeight';
-      if (post.file.fullImage) {
+      if (img = post.file.fullImage) {
+        $.rmClass(img, 'ihover');
+        $.addClass(img, 'full-image');
+        img.controls = img.parentNode !== thumb.parentNode;
         $.asap((function() {
-          return post.file.fullImage[naturalHeight];
+          return img[naturalHeight];
         }), function() {
           return ImageExpand.completeExpand(post);
         });
@@ -10857,7 +10867,7 @@
       file = post.file;
       video = file.fullImage;
       file.videoControls = [];
-      video.muted = true;
+      video.muted = !Conf['Allow Sound'];
       if (video.controls) {
         contract = $.el('a', {
           textContent: 'contract',
@@ -10999,8 +11009,8 @@
       }
     },
     node: function() {
-      var _ref;
-      if (!((_ref = this.file) != null ? _ref.isImage : void 0)) {
+      var _ref, _ref1;
+      if (!(((_ref = this.file) != null ? _ref.isImage : void 0) || ((_ref1 = this.file) != null ? _ref1.isVideo : void 0))) {
         return;
       }
       return $.on(this.file.thumb, 'mouseover', ImageHover.mouseover);
@@ -11013,21 +11023,46 @@
       return $.on(this.nodes.thumb, 'mouseover', ImageHover.mouseover);
     },
     mouseover: function(e) {
-      var el, post;
+      var el, isVideo, naturalHeight, post, thumb;
       post = $.hasClass(this, 'thumb') ? g.posts[this.parentNode.dataset.fullID] : Get.postFromNode(this);
-      el = $.el('img', {
-        id: 'ihover',
-        src: post.file.URL
-      });
+      isVideo = post.file.isVideo;
+      if (post.file.fullImage) {
+        el = post.file.fullImage;
+        $.rmClass(el, 'full-image');
+        $.addClass(el, 'ihover');
+      } else {
+        el = $.el((isVideo ? 'video' : 'img'), {
+          className: 'ihover',
+          src: post.file.URL
+        });
+        post.file.fullImage = el;
+        thumb = post.file.thumb;
+        $.after((isVideo && Conf['Show Controls'] ? thumb.parentNode : thumb), el);
+      }
       el.dataset.fullID = post.fullID;
-      $.add(Header.hover, el);
+      if (isVideo) {
+        el.loop = true;
+        el.controls = false;
+        el.muted = !Conf['Allow Sound'];
+        if (Conf['Autoplay']) {
+          el.play();
+        }
+      }
+      naturalHeight = post.file.isVideo ? 'videoHeight' : 'naturalHeight';
       UI.hover({
         root: this,
         el: el,
         latestEvent: e,
         endEvents: 'mouseout click',
         asapTest: function() {
-          return el.naturalHeight;
+          return el[naturalHeight];
+        },
+        cb: function() {
+          if (isVideo) {
+            el.pause();
+          }
+          $.rmClass(el, 'ihover');
+          return $.addClass(el, 'full-image');
         }
       });
       return $.on(el, 'error', ImageHover.error);
diff --git a/builds/updates.xml b/builds/updates.xml
new file mode 100644
index 000000000..b25f40d4d
--- /dev/null
+++ b/builds/updates.xml
@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<gupdate xmlns='http://www.google.com/update2/response' protocol='2.0'>
+  <app appid='lacclbnghgdicfifcamcmcnilckjamag'>
+    <updatecheck codebase='https://ccd0.github.io/4chan-x/builds/crx.crx' version='1.5.1' />
+  </app>
+</gupdate>
+
diff --git a/src/General/Config.coffee b/src/General/Config.coffee
index 183960169..7a0b79695 100644
--- a/src/General/Config.coffee
+++ b/src/General/Config.coffee
@@ -121,7 +121,7 @@ Config =
       ]
       'Image Hover': [
         true
-        'Show full image on mouseover.'
+        'Show full image / video on mouseover.'
       ]
       'Image Hover in Catalog': [
         false
@@ -171,6 +171,10 @@ Config =
         true
         'Show native seek and volume controls on videos. Contract videos when dragged to the left.'
       ]
+      'Allow Sound': [
+        true
+        'Allow sound in inline videos.'
+      ]
 
     'Menu':
       'Menu': [
diff --git a/src/General/UI.coffee b/src/General/UI.coffee
index 0e9ebf418..6983adafb 100755
--- a/src/General/UI.coffee
+++ b/src/General/UI.coffee
@@ -366,7 +366,7 @@ UI = do ->
 
   hoverend = (e) ->
     return if e.type is 'keydown' and e.keyCode isnt 13 or e.target.nodeName is "TEXTAREA"
-    $.rm @el
+    $.rm @el if @el.parentNode is Header.hover
     $.off @root, @endEvents,  @hoverend
     $.off d,     'keydown',   @hoverend
     $.off @root, 'mousemove', @hover
diff --git a/src/General/css/style.css b/src/General/css/style.css
index 28bc9791d..51208e44a 100755
--- a/src/General/css/style.css
+++ b/src/General/css/style.css
@@ -108,7 +108,7 @@ div.center:not(.ad-cnt) {
 /* fixed, z-index */
 #overlay,
 #fourchanx-settings,
-#qp, #ihover,
+#qp, .ihover,
 #navlinks, .fixed #header-bar,
 :root.float #updater,
 :root.float #thread-stats,
@@ -124,7 +124,7 @@ div.center:not(.ad-cnt) {
 #notifications {
   z-index: 70;
 }
-#qp, #ihover {
+#qp, .ihover {
   z-index: 60;
 }
 #menu {
@@ -840,7 +840,7 @@ span.hide-announcement {
 :root.gecko.fit-width .full-image {
   width: 100%;
 }
-#ihover {
+.ihover {
   -moz-box-sizing: border-box;
   box-sizing: border-box;
   max-height: 100%;
diff --git a/src/Images/ImageExpand.coffee b/src/Images/ImageExpand.coffee
index f54345a0d..bdf2aaf7c 100644
--- a/src/Images/ImageExpand.coffee
+++ b/src/Images/ImageExpand.coffee
@@ -103,9 +103,12 @@ ImageExpand =
     return if post.isHidden or post.file.isExpanded or $.hasClass thumb, 'expanding'
     $.addClass thumb, 'expanding'
     naturalHeight = if isVideo then 'videoHeight' else 'naturalHeight'
-    if post.file.fullImage
+    if img = post.file.fullImage
       # Expand already-loaded/ing picture.
-      $.asap (-> post.file.fullImage[naturalHeight]), ->
+      $.rmClass img, 'ihover'
+      $.addClass img, 'full-image'
+      img.controls = (img.parentNode isnt thumb.parentNode)
+      $.asap (-> img[naturalHeight]), ->
         ImageExpand.completeExpand post
       return
     post.file.fullImage = img = $.el (if isVideo then 'video' else 'img'),
@@ -141,7 +144,7 @@ ImageExpand =
     {file} = post
     video = file.fullImage
     file.videoControls = []
-    video.muted = true
+    video.muted = not Conf['Allow Sound']
     if video.controls
       # contract link in file info
       contract = $.el 'a',
diff --git a/src/Images/ImageHover.coffee b/src/Images/ImageHover.coffee
index 808bb9e85..f5816f210 100755
--- a/src/Images/ImageHover.coffee
+++ b/src/Images/ImageHover.coffee
@@ -9,7 +9,7 @@ ImageHover =
         name: 'Image Hover'
         cb:   @catalogNode
   node: ->
-    return unless @file?.isImage
+    return unless @file?.isImage or @file?.isVideo
     $.on @file.thumb, 'mouseover', ImageHover.mouseover
   catalogNode: ->
     return unless @thread.OP.file?.isImage
@@ -19,17 +19,35 @@ ImageHover =
       g.posts[@parentNode.dataset.fullID]
     else
       Get.postFromNode @
-    el = $.el 'img',
-      id: 'ihover'
-      src: post.file.URL
+    {isVideo} = post.file
+    if post.file.fullImage
+      el = post.file.fullImage
+      $.rmClass el, 'full-image'
+      $.addClass el, 'ihover'
+    else
+      el = $.el (if isVideo then 'video' else 'img'),
+        className: 'ihover'
+        src: post.file.URL
+      post.file.fullImage = el
+      {thumb} = post.file
+      $.after (if isVideo and Conf['Show Controls'] then thumb.parentNode else thumb), el
     el.dataset.fullID = post.fullID
-    $.add Header.hover, el
+    if isVideo
+      el.loop = true
+      el.controls = false
+      el.muted = not Conf['Allow Sound']
+      el.play() if Conf['Autoplay']
+    naturalHeight = if post.file.isVideo then 'videoHeight' else 'naturalHeight'
     UI.hover
       root: @
       el: el
       latestEvent: e
       endEvents: 'mouseout click'
-      asapTest: -> el.naturalHeight
+      asapTest: -> el[naturalHeight]
+      cb: ->
+        el.pause() if isVideo
+        $.rmClass el, 'ihover'
+        $.addClass el, 'full-image'
     $.on el, 'error', ImageHover.error
   error: ->
     return unless doc.contains @
diff --git a/src/Posting/QR.coffee b/src/Posting/QR.coffee
index ad504c7a1..165016a70 100644
--- a/src/Posting/QR.coffee
+++ b/src/Posting/QR.coffee
@@ -1,6 +1,6 @@
 QR =
   # Add empty mimeType to avoid errors with URLs selected in Window's file dialog.
-  mimeTypes: ['image/jpeg', 'image/png', 'image/gif', 'application/pdf', 'application/x-shockwave-flash', '']
+  mimeTypes: ['image/jpeg', 'image/png', 'image/gif', 'application/pdf', 'application/x-shockwave-flash', 'video/webm', '']
 
   init: ->
     @db = new DataBoard 'yourPosts'
@@ -371,13 +371,16 @@ QR =
     $.addClass QR.nodes.el, 'dump' unless isSingle
 
   checkDimensions: (file, isSingle, max) ->
-    img = new Image()
-    img.onload = =>
-      {height, width} = img
-      return QR.error "#{file.name}: Image too large (image: #{img.height}x#{img.width}px, max: #{QR.max_heigth}x#{QR.max_width}px)" if height > QR.max_heigth or width > QR.max_heigth
-      return QR.error "#{file.name}: Image too small (image: #{img.height}x#{img.width}px, min: #{QR.min_heigth}x#{QR.min_width}px)" if height < QR.min_heigth or width < QR.min_heigth
+    if /^image\//.test file.type
+      img = new Image()
+      img.onload = =>
+        {height, width} = img
+        return QR.error "#{file.name}: Image too large (image: #{img.height}x#{img.width}px, max: #{QR.max_heigth}x#{QR.max_width}px)" if height > QR.max_heigth or width > QR.max_heigth
+        return QR.error "#{file.name}: Image too small (image: #{img.height}x#{img.width}px, min: #{QR.min_heigth}x#{QR.min_width}px)" if height < QR.min_heigth or width < QR.min_heigth
+        QR.handleFile file, isSingle, max
+      img.src = URL.createObjectURL file
+    else
       QR.handleFile file, isSingle, max
-    img.src = URL.createObjectURL file
 
   handleFile: (file, isSingle, max) ->
     if file.size > max
diff --git a/src/Posting/QR.post.coffee b/src/Posting/QR.post.coffee
index 089503b9e..799c17e9f 100644
--- a/src/Posting/QR.post.coffee
+++ b/src/Posting/QR.post.coffee
@@ -146,7 +146,7 @@ QR.post = class
       when 'filename'
         return unless @file
         @file.newName = @filename.replace /[/\\]/g, '-'
-        unless /\.(jpe?g|png|gif|pdf|swf)$/i.test @filename
+        unless /\.(jpe?g|png|gif|pdf|swf|webm)$/i.test @filename
           # 4chan will truncate the filename if it has no extension,
           # but it will always replace the extension by the correct one,
           # so we suffix it with '.jpg' when needed.