diff --git a/apps/files_archive/lib/tar.php b/apps/files_archive/lib/tar.php
index a5d5400478..1eed11a762 100644
--- a/apps/files_archive/lib/tar.php
+++ b/apps/files_archive/lib/tar.php
@@ -30,8 +30,8 @@ class OC_Archive_TAR extends OC_Archive{
 	 */
 	static public function getTarType($file){
 		if(strpos($file,'.')){
-			$extention=substr($file,strrpos($file,'.'));
-			switch($extention){
+			$extension=substr($file,strrpos($file,'.'));
+			switch($extension){
 				case 'gz':
 				case 'tgz':
 					return self::GZIP;
diff --git a/apps/files_encryption/lib/proxy.php b/apps/files_encryption/lib/proxy.php
index c1c26d7754..c68df06f9f 100644
--- a/apps/files_encryption/lib/proxy.php
+++ b/apps/files_encryption/lib/proxy.php
@@ -41,8 +41,8 @@ class OC_FileProxy_Encryption extends OC_FileProxy{
 		if(self::isEncrypted($path)){
 			return true;
 		}
-		$extention=substr($path,strrpos($path,'.')+1);
-		if(array_search($extention,self::$blackList)===false){
+		$extension=substr($path,strrpos($path,'.')+1);
+		if(array_search($extension,self::$blackList)===false){
 			return true;
 		}
 	}
diff --git a/apps/files_sharing/get.php b/apps/files_sharing/get.php
index fa3535fd14..3e42bf6a6c 100644
--- a/apps/files_sharing/get.php
+++ b/apps/files_sharing/get.php
@@ -31,7 +31,7 @@ if ($source !== false) {
 			if ($i['type'] == 'file') {
 				$fileinfo = pathinfo($i['name']);
 				$i['basename'] = $fileinfo['filename'];
-				$i['extention'] = isset($fileinfo['extension']) ? ('.'.$fileinfo['extension']) : '';
+				$i['extension'] = isset($fileinfo['extension']) ? ('.'.$fileinfo['extension']) : '';
 			}
 			$i['directory'] = substr($i['directory'], $rootLength);
 			if ($i['directory'] == "/") {
diff --git a/apps/media/js/loader.js b/apps/media/js/loader.js
index 514965666f..393f8ba914 100644
--- a/apps/media/js/loader.js
+++ b/apps/media/js/loader.js
@@ -1,10 +1,10 @@
 function musicTypeFromFile(file){
-	var extention=file.substr(file.indexOf('.')+1).toLowerCase();
-	if(extention=='ogg'){
+	var extension=file.substr(file.indexOf('.')+1).toLowerCase();
+	if(extension=='ogg'){
 		return 'oga';
 	}
 	//TODO check for more specific cases
-	return extention;
+	return extension;
 }
 
 function playAudio(filename){
diff --git a/apps/media/js/music.js b/apps/media/js/music.js
index f93f0fded6..db12922762 100644
--- a/apps/media/js/music.js
+++ b/apps/media/js/music.js
@@ -48,10 +48,10 @@ function getUrlVars(){
 }
 
 function musicTypeFromFile(file){
-	var extention=file.split('.').pop().toLowerCase();
-	if(extention=='ogg'){
+	var extension=file.split('.').pop().toLowerCase();
+	if(extension=='ogg'){
 		return 'oga';
 	}
 	//TODO check for more specific cases
-	return extention;
+	return extension;
 }
diff --git a/apps/media/lib_scanner.php b/apps/media/lib_scanner.php
index 341f411bdb..78c6ad491d 100644
--- a/apps/media/lib_scanner.php
+++ b/apps/media/lib_scanner.php
@@ -127,7 +127,7 @@ class OC_MEDIA_SCANNER{
 	}
 
 	/**
-	 * quick check if a song is a music file by checking the extention, not as good as a proper mimetype check but way faster
+	 * quick check if a song is a music file by checking the extension, not as good as a proper mimetype check but way faster
 	 * @param string $filename
 	 * @return bool
 	 */
diff --git a/core/css/styles.css b/core/css/styles.css
index 5e3bbfcf18..a496448049 100644
--- a/core/css/styles.css
+++ b/core/css/styles.css
@@ -95,8 +95,9 @@ label.infield { cursor: text !important; }
 #navigation a.active, #navigation a:hover, #navigation a:focus { background-color:#dbdbdb; border-top:1px solid #d4d4d4; border-bottom:1px solid #ccc; color:#333; }
 #navigation a.active { background-color:#ddd; }
 #navigation #settings { position:absolute; bottom:3.5em; width:100%; }
-#expand { margin:0 0 .2em 1.2em; cursor:pointer; }
-#expand+span { position:relative; bottom:.4em; left:.2em; font-size:1.2em; color:#666; text-shadow:#f8f8f8 0 1px 0; }
+#expand { position:relative; margin-bottom:-.5em; padding:.5em 10.1em .7em 1.2em; cursor:pointer; }
+#expand+span { position:absolute; margin:-1.7em 0 0 2.5em; font-size:1.2em; color:#666; text-shadow:#f8f8f8 0 1px 0; opacity:0; -webkit-transition:opacity 500ms; -moz-transition:opacity 500ms; -o-transition:opacity 500ms; transition:opacity 500ms; }
+#expand:hover+span, #expand+span:hover { opacity:1; cursor:pointer; }
 #logout { position:absolute; right:0; top:0; padding:1.2em 2em .55em 1.2em; }
 
 
diff --git a/core/js/js.js b/core/js/js.js
index e3941fba6d..51dcbe5413 100644
--- a/core/js/js.js
+++ b/core/js/js.js
@@ -69,10 +69,10 @@ OC={
 	 * @param file the name of the image file
 	 * @return string
 	 * 
-	 * if no extention is given for the image, it will automatically decide between .png and .svg based on what the browser supports
+	 * if no extension is given for the image, it will automatically decide between .png and .svg based on what the browser supports
 	 */ 
 	imagePath:function(app,file){
-		if(file.indexOf('.')==-1){//if no extention is given, use png or svg depending on browser support
+		if(file.indexOf('.')==-1){//if no extension is given, use png or svg depending on browser support
 			file+=(SVGSupport())?'.svg':'.png';
 		}
 		return OC.filePath(app,'img',file);
@@ -406,9 +406,6 @@ $(document).ready(function(){
 	$('#settings #expanddiv').click(function(event){
 		event.stopPropagation();
 	});
-	$('#settings #expand').hover(function(){
-		$('#settings #expand+span').fadeToggle();
-	});
 	$(window).click(function(){//hide the settings menu when clicking oustide it
 		if($('body').attr("id")=="body-user"){
 			$('#settings #expanddiv').slideUp();
diff --git a/core/templates/layout.user.php b/core/templates/layout.user.php
index 85cf089979..61eb0de9f4 100644
--- a/core/templates/layout.user.php
+++ b/core/templates/layout.user.php
@@ -44,7 +44,7 @@
 
 			<ul id="settings" class="svg">
 				<img id="expand" class="svg" alt="<?php echo $l->t('Settings');?>" src="<?php echo image_path('', 'actions/settings.svg'); ?>" />
-				<span style="display:none;"><?php echo $l->t('Settings');?></span>
+				<span><?php echo $l->t('Settings');?></span>
 				<div id="expanddiv" <?php if($_['bodyid'] == 'body-user') echo 'style="display:none;"'; ?>>
 				<?php foreach($_['settingsnavigation'] as $entry):?>
 					<li><a style="background-image:url(<?php echo $entry['icon']; ?>)" href="<?php echo $entry['href']; ?>" title="" <?php if( $entry["active"] ): ?> class="active"<?php endif; ?>><?php echo $entry['name'] ?></a></li>
diff --git a/files/css/files.css b/files/css/files.css
index 9e950517b8..eb05d468f0 100644
--- a/files/css/files.css
+++ b/files/css/files.css
@@ -36,13 +36,13 @@
 /* FILE TABLE */
 #emptyfolder { position:absolute; margin:10em 0 0 10em; font-size:1.5em; font-weight:bold; color:#888; text-shadow:#fff 0 1px 0; }
 table { position:relative; top:37px; width:100%; }
-tbody tr:hover, tbody tr:active, tbody tr.selected { background-color:#f8f8f8; height:1em; }
-tbody tr { background-color:#fff; }
+tbody tr { background-color:#fff; height:2.5em; }
+tbody tr:hover, tbody tr:active, tbody tr.selected { background-color:#f8f8f8; }
 tbody tr.selected { background-color:#eee; }
 tbody a { color:#000; }
-span.extention, td.date { color:#999; }
-span.extention { opacity:0; -webkit-transition:opacity 500ms; -moz-transition:opacity 500ms; -o-transition:opacity 500ms; transition:opacity 500ms; }
-tr:hover span.extention { opacity:1; }
+span.extension, td.date { color:#999; }
+span.extension { text-transform:lowercase; opacity:0; -webkit-transition:opacity 500ms; -moz-transition:opacity 500ms; -o-transition:opacity 500ms; transition:opacity 500ms; }
+tr:hover span.extension { opacity:1; }
 div.crumb { float:left; display:block; background:no-repeat right 0; padding:.75em 1.5em 0 1em; height:2.9em; }
 div.crumb:first-child { padding-left:1em; }
 div.crumb.last { font-weight:bold; }
@@ -60,7 +60,7 @@ table tr[data-type="dir"] td.filename a.name {font-weight:bold; }
 table td.filename a.name input, table td.filename a.name form { width:100%; cursor:text; }
 table td.filename a, table td.login, table td.logout, table td.download, table td.upload, table td.create, table td.delete { padding:.2em .5em .5em 0; }
 table td.filename .nametext, .modified { float:left; padding:.3em 0; }
-table td.filename .nametext { width:60%; }
+table td.filename .nametext { width:70%; overflow:hidden; }
 table td.filename form { float:left; font-size:.85em; }
 table thead.fixed tr{ position:fixed; top:6.5em; z-index:49; -moz-box-shadow:0 -3px 7px #ddd; -webkit-box-shadow:0 -3px 7px #ddd; box-shadow:0 -3px 7px #ddd; }
 table thead.fixed { height:2em; }
@@ -70,8 +70,12 @@ table thead.fixed { height:2em; }
 #fileList tr td.filename { -webkit-transition:background-image 500ms; -moz-transition:background-image 500ms; -o-transition:background-image 500ms; transition:background-image 500ms; }
 #select_all { float:left; margin:.3em 0.6em 0 .5em; }
 #uploadsize-message,#delete-confirm { display:none; }
-.selectedActions a,#fileList a.action { float:right; display:inline; margin:0 .5em; padding:.3em .3em 0 .3em !important; }
-a.action>img{ max-height:16px; max-width:16px; }
+.fileactions { position:absolute; right:0; top:.8em; font-size:.8em; }
+#fileList .fileactions a.action { position:relative; top:-.3em; }
+#fileList .fileactions a.action img { position:relative; top:.2em; }
+.selectedActions a,#fileList a.action { display:inline; margin:-.5em 0; padding:1em .5em 1em .5em !important; }
+a.action.delete { float:right; }
+a.action>img { max-height:16px; max-width:16px; vertical-align:text-bottom; }
 .selectedActions { display:none; }
 
 /* add breadcrumb divider to the File item in navigation panel */
diff --git a/files/index.php b/files/index.php
index 82d0960892..aea91542db 100644
--- a/files/index.php
+++ b/files/index.php
@@ -51,10 +51,10 @@ foreach( OC_Files::getdirectorycontent( $dir ) as $i ){
 		$fileinfo=pathinfo($i['name']);
 		$i['basename']=$fileinfo['filename'];
 		if (!empty($fileinfo['extension'])) {
-			$i['extention']='.' . $fileinfo['extension'];
+			$i['extension']='.' . $fileinfo['extension'];
 		}
 		else {
-			$i['extention']='';
+			$i['extension']='';
 		}
 	}
 	if($i['directory']=='/'){
diff --git a/files/js/fileactions.js b/files/js/fileactions.js
index 60c4fadedd..5c6dc65d49 100644
--- a/files/js/fileactions.js
+++ b/files/js/fileactions.js
@@ -59,6 +59,7 @@ FileActions={
 		if($('tr').filterAttr('data-file',file).data('renaming')){
 			return;
 		}
+		parent.children('a.name').append('<span class="fileactions" />');
 		var defaultAction=FileActions.getDefault(FileActions.getCurrentMimeType(),FileActions.getCurrentType());
 		for(name in actions){
 			if((name=='Download' || actions[name]!=defaultAction) && name!='Delete'){
@@ -66,11 +67,10 @@ FileActions={
 				if(img.call){
 					img=img(file);
 				}
-				var html='<a href="#" original-title="'+name+'" class="action" style="display:none" />';
+				var html='<a href="#" class="action" style="display:none">';
+				if(img) { html+='<img src="'+img+'"/> '; }
+				html += name+'</a>';
 				var element=$(html);
-				if(img){
-					element.append($('<img src="'+img+'"/>'));
-				}
 				element.data('action',name);
 				element.click(function(event){
 					event.stopPropagation();
@@ -81,7 +81,7 @@ FileActions={
 					action(currentFile);
 				});
 				element.hide();
-				parent.children('a.name').append(element);
+				parent.find('a.name>span.fileactions').append(element);
 			}
 		}
 		if(actions['Delete']){
@@ -113,7 +113,7 @@ FileActions={
 		return false;
 	},
 	hide:function(){
-		$('#fileList .action').fadeOut(200,function(){
+		$('#fileList span.fileactions').fadeOut(200,function(){
 			$(this).remove();
 		});
 	},
diff --git a/files/js/filelist.js b/files/js/filelist.js
index 35847e06df..533e03b43c 100644
--- a/files/js/filelist.js
+++ b/files/js/filelist.js
@@ -7,15 +7,15 @@ FileList={
 		var html='<tr data-type="file" data-size="'+size+'">';
 		if(name.indexOf('.')!=-1){
 			var basename=name.substr(0,name.lastIndexOf('.'));
-			var extention=name.substr(name.lastIndexOf('.'));
+			var extension=name.substr(name.lastIndexOf('.'));
 		}else{
 			var basename=name;
-			var extention=false;
+			var extension=false;
 		}
 		html+='<td class="filename" style="background-image:url('+img+')"><input type="checkbox" />';
 		html+='<a class="name" href="download.php?file='+$('#dir').val()+'/'+name+'"><span class="nametext">'+basename
-		if(extention){
-			html+='<span class="extention">'+extention+'</span>';
+		if(extension){
+			html+='<span class="extension">'+extension+'</span>';
 		}
 		html+='</span></a></td>';
 		if(size!='Pending'){
@@ -147,7 +147,7 @@ FileList={
 			span.text(basename);
 			td.children('a.name').append(span);
 			if(newname.indexOf('.')>0){
-				span.append($('<span class="extention">'+newname.substr(newname.lastIndexOf('.'))+'</span>'));
+				span.append($('<span class="extension">'+newname.substr(newname.lastIndexOf('.'))+'</span>'));
 			}
 			$.get(OC.filePath('files','ajax','rename.php'), { dir : $('#dir').val(), newname: newname, file: name },function(){
 				tr.data('renaming',false);
diff --git a/files/templates/part.list.php b/files/templates/part.list.php
index b117d81a1a..5a5941fc7a 100644
--- a/files/templates/part.list.php
+++ b/files/templates/part.list.php
@@ -18,7 +18,7 @@
 						<?php if($file['type'] == 'dir'):?>
 							<?php echo htmlspecialchars($file['name']);?>
 						<?php else:?>
-							<?php echo htmlspecialchars($file['basename']);?><span class='extention'><?php echo $file['extention'];?></span>
+							<?php echo htmlspecialchars($file['basename']);?><span class='extension'><?php echo $file['extension'];?></span>
 						<?php endif;?>
 					</span>
 					</a>
diff --git a/lib/filestorage/common.php b/lib/filestorage/common.php
index f632474df0..f0bfc064cb 100644
--- a/lib/filestorage/common.php
+++ b/lib/filestorage/common.php
@@ -100,11 +100,11 @@ abstract class OC_Filestorage_Common extends OC_Filestorage {
 		}
 		$head=fread($source,8192);//8kb should suffice to determine a mimetype
 		if($pos=strrpos($path,'.')){
-			$extention=substr($path,$pos);
+			$extension=substr($path,$pos);
 		}else{
-			$extention='';
+			$extension='';
 		}
-		$tmpFile=OC_Helper::tmpFile($extention);
+		$tmpFile=OC_Helper::tmpFile($extension);
 		file_put_contents($tmpFile,$head);
 		$mime=OC_Helper::getMimeType($tmpFile);
 		unlink($tmpFile);
@@ -129,11 +129,11 @@ abstract class OC_Filestorage_Common extends OC_Filestorage {
 			return false;
 		}
 		if($pos=strrpos($path,'.')){
-			$extention=substr($path,$pos);
+			$extension=substr($path,$pos);
 		}else{
-			$extention='';
+			$extension='';
 		}
-		$tmpFile=OC_Helper::tmpFile($extention);
+		$tmpFile=OC_Helper::tmpFile($extension);
 		$target=fopen($tmpFile,'w');
 		$count=OC_Helper::streamCopy($source,$target);
 		return $tmpFile;
diff --git a/lib/helper.php b/lib/helper.php
index 2026286352..c33db5f10f 100755
--- a/lib/helper.php
+++ b/lib/helper.php
@@ -310,9 +310,9 @@ class OC_Helper {
 		$mimeType='application/octet-stream';
 		if ($mimeType=='application/octet-stream') {
 			self::$mimetypes = include('mimetypes.fixlist.php');
-			$extention=strtolower(strrchr(basename($path), "."));
-			$extention=substr($extention,1);//remove leading .
-			$mimeType=(isset(self::$mimetypes[$extention]))?self::$mimetypes[$extention]:'application/octet-stream';
+			$extension=strtolower(strrchr(basename($path), "."));
+			$extension=substr($extension,1);//remove leading .
+			$mimeType=(isset(self::$mimetypes[$extension]))?self::$mimetypes[$extension]:'application/octet-stream';
 
 		}
 		if (@is_dir($path)) {
@@ -346,9 +346,9 @@ class OC_Helper {
 			if(!self::$mimetypes || self::$mimetypes != include('mimetypes.list.php')){
 				self::$mimetypes=include('mimetypes.list.php');
 			}
-			$extention=strtolower(strrchr(basename($path), "."));
-			$extention=substr($extention,1);//remove leading .
-			$mimeType=(isset(self::$mimetypes[$extention]))?self::$mimetypes[$extention]:'application/octet-stream';
+			$extension=strtolower(strrchr(basename($path), "."));
+			$extension=substr($extension,1);//remove leading .
+			$mimeType=(isset(self::$mimetypes[$extension]))?self::$mimetypes[$extension]:'application/octet-stream';
 		}
 		return $mimeType;
 	}
diff --git a/lib/mimetypes.list.php b/lib/mimetypes.list.php
index e0570e84ea..ccf47999b1 100644
--- a/lib/mimetypes.list.php
+++ b/lib/mimetypes.list.php
@@ -21,7 +21,7 @@
 */
 
 /**
- * list of mimetypes by extention
+ * list of mimetypes by extension
  */
 
 return array(
diff --git a/lib/template.php b/lib/template.php
index cb39a10df3..eeba2410b6 100644
--- a/lib/template.php
+++ b/lib/template.php
@@ -161,7 +161,7 @@ class OC_Template{
 	}
 
 	/**
-	 * @brief Returns the formfactor extention for current formfactor
+	 * @brief Returns the formfactor extension for current formfactor
 	 */
 	protected function getFormFactorExtension()
 	{