diff --git a/phpBB/adm/style/acp_logs.html b/phpBB/adm/style/acp_logs.html
index 9343b9b509..b3b5fe3394 100644
--- a/phpBB/adm/style/acp_logs.html
+++ b/phpBB/adm/style/acp_logs.html
@@ -22,15 +22,15 @@
 <div><br style="clear: both;" /></div>
 
 <!-- IF .log -->
-	<table class="table1 zebra-table">
+	<table class="table1 zebra-table fixed-width-table">
 	<thead>
 	<tr>
-		<th>{L_USERNAME}</th>
-		<th>{L_IP}</th>
-		<th>{L_TIME}</th>
+		<th style="width: 15%;">{L_USERNAME}</th>
+		<th style="width: 15%;">{L_IP}</th>
+		<th style="width: 20%;">{L_TIME}</th>
 		<th>{L_ACTION}</th>
 		<!-- IF S_CLEARLOGS -->
-			<th>{L_MARK}</th>
+			<th style="width: 10%;">{L_MARK}</th>
 		<!-- ENDIF -->
 	</tr>
 	</thead>
diff --git a/phpBB/adm/style/admin.css b/phpBB/adm/style/admin.css
index 6f2d65afc0..7f15c162a5 100644
--- a/phpBB/adm/style/admin.css
+++ b/phpBB/adm/style/admin.css
@@ -911,6 +911,11 @@ table.styles td.users, table td.mark {
 	text-align: center;
 }
 
+table.fixed-width-table {
+	table-layout: fixed;
+	width: 100%;
+}
+
 @media only screen and (max-width: 700px), only screen and (max-device-width: 700px)
 {
 	table.responsive, table.responsive tbody, table.responsive tr, table.responsive td {
diff --git a/phpBB/includes/acp/acp_attachments.php b/phpBB/includes/acp/acp_attachments.php
index d8d382b2bd..8eef2da24b 100644
--- a/phpBB/includes/acp/acp_attachments.php
+++ b/phpBB/includes/acp/acp_attachments.php
@@ -1058,7 +1058,7 @@ class acp_attachments
 					$template->assign_block_vars('orphan', array(
 						'FILESIZE'			=> get_formatted_filesize($row['filesize']),
 						'FILETIME'			=> $user->format_date($row['filetime']),
-						'REAL_FILENAME'		=> utf8_basename($row['real_filename']),
+						'REAL_FILENAME'		=> utf8_wordwrap(utf8_basename((string) $row['real_filename']), 40, '<br />', true),
 						'PHYSICAL_FILENAME'	=> utf8_basename($row['physical_filename']),
 						'ATTACH_ID'			=> $row['attach_id'],
 						'POST_IDS'			=> (!empty($post_ids[$row['attach_id']])) ? $post_ids[$row['attach_id']] : '',
diff --git a/phpBB/includes/acp/acp_users.php b/phpBB/includes/acp/acp_users.php
index a720334ed2..289672cdc3 100644
--- a/phpBB/includes/acp/acp_users.php
+++ b/phpBB/includes/acp/acp_users.php
@@ -2082,7 +2082,7 @@ class acp_users
 					}
 
 					$template->assign_block_vars('attach', array(
-						'REAL_FILENAME'		=> $row['real_filename'],
+						'REAL_FILENAME'		=> utf8_wordwrap(utf8_basename((string) $row['real_filename']), 40, '<br />', true),
 						'COMMENT'			=> nl2br($row['attach_comment']),
 						'EXTENSION'			=> $row['extension'],
 						'SIZE'				=> get_formatted_filesize($row['filesize']),
diff --git a/phpBB/styles/prosilver/template/posting_attach_body.html b/phpBB/styles/prosilver/template/posting_attach_body.html
index b6f4d13804..4ad66656b2 100644
--- a/phpBB/styles/prosilver/template/posting_attach_body.html
+++ b/phpBB/styles/prosilver/template/posting_attach_body.html
@@ -35,7 +35,7 @@
 				<tbody class="responsive-skip-empty" id="file-list">
 					<tr class="attach-row" id="attach-row-tpl">
 							<td class="attach-name">
-								<span class="file-name"></span>
+								<span class="file-name ellipsis-text"></span>
 								<span class="attach-controls">
 									<input type="button" value="{L_PLACE_INLINE}" class="button2 hidden file-inline-bbcode" />&nbsp;
 									<input type="button" value="{L_DELETE_FILE}" class="button2 file-delete" />
@@ -58,7 +58,7 @@
 					<!-- BEGIN attach_row -->
 						<tr class="attach-row" data-attach-id="{attach_row.ATTACH_ID}">
 							<td class="attach-name">
-								<span class="file-name"><a href="{attach_row.U_VIEW_ATTACHMENT}">{attach_row.FILENAME}</a></span>
+								<span class="file-name ellipsis-text"><a href="{attach_row.U_VIEW_ATTACHMENT}">{attach_row.FILENAME}</a></span>
 								<span class="attach-controls">
 									<!-- IF S_INLINE_ATTACHMENT_OPTIONS --><input type="button" value="{L_PLACE_INLINE}" class="button2 file-inline-bbcode" />&nbsp; <!-- ENDIF -->
 									<input type="submit" name="delete_file[{attach_row.ASSOC_INDEX}]" value="{L_DELETE_FILE}" class="button2 file-delete" />
diff --git a/phpBB/styles/prosilver/template/ucp_attachments.html b/phpBB/styles/prosilver/template/ucp_attachments.html
index ed39e80c12..4731683a80 100644
--- a/phpBB/styles/prosilver/template/ucp_attachments.html
+++ b/phpBB/styles/prosilver/template/ucp_attachments.html
@@ -38,7 +38,7 @@
 			<dl>
 				<dt>
 					<div class="list-inner">
-						<a href="{attachrow.U_VIEW_ATTACHMENT}" class="topictitle">{attachrow.FILENAME}</a> ({attachrow.SIZE})<br />
+						<a href="{attachrow.U_VIEW_ATTACHMENT}" class="topictitle attachment-filename ellipsis-text" title="{attachrow.FILENAME}">{attachrow.FILENAME}</a> ({attachrow.SIZE})<br />
 						<!-- IF attachrow.S_IN_MESSAGE -->{L_PM}{L_COLON} <!-- ELSE -->{L_TOPIC}{L_COLON} <!-- ENDIF --><a href="{attachrow.U_VIEW_TOPIC}">{attachrow.TOPIC_TITLE}</a>
 					</div>
 				</dt>
diff --git a/phpBB/styles/prosilver/theme/content.css b/phpBB/styles/prosilver/theme/content.css
index d27fb81fee..31f5fa36f7 100644
--- a/phpBB/styles/prosilver/theme/content.css
+++ b/phpBB/styles/prosilver/theme/content.css
@@ -779,6 +779,17 @@ div.dl_links {
 	display: inline-block;
 }
 
+.attachment-filename {
+	width: 100%;
+}
+
+.ellipsis-text {
+	display: inline-block;
+	overflow: hidden;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+}
+
 /* Show scrollbars for items with overflow on iOS devices
 ----------------------------------------*/
 .postbody .content::-webkit-scrollbar, #topicreview::-webkit-scrollbar, #post_details::-webkit-scrollbar, .codebox code::-webkit-scrollbar, .attachbox dd::-webkit-scrollbar, .attach-image::-webkit-scrollbar, .dropdown-extended ul::-webkit-scrollbar {
diff --git a/phpBB/styles/prosilver/theme/plupload.css b/phpBB/styles/prosilver/theme/plupload.css
index 8569eca662..f81064dbe6 100644
--- a/phpBB/styles/prosilver/theme/plupload.css
+++ b/phpBB/styles/prosilver/theme/plupload.css
@@ -74,3 +74,8 @@
 	height: 16px;
 	width: 16px;
 }
+
+.file-name {
+	max-width: 65%;
+	vertical-align: bottom;
+}