Index: wp-admin/includes/class-wp-plugins-list-table.php
===================================================================
--- wp-admin/includes/class-wp-plugins-list-table.php	(revision 20991)
+++ wp-admin/includes/class-wp-plugins-list-table.php	(working copy)
@@ -417,11 +417,11 @@
 					if ( !empty( $plugin_data['Author'] ) ) {
 						$author = $plugin_data['Author'];
 						if ( !empty( $plugin_data['AuthorURI'] ) )
-							$author = '<a href="' . $plugin_data['AuthorURI'] . '" title="' . esc_attr__( 'Visit author homepage' ) . '">' . $plugin_data['Author'] . '</a>';
+							$author = '<a href="' . $plugin_data['AuthorURI'] . '" title="' . esc_attr__( 'Visit author homepage' ) . '" target="_blank">' . $plugin_data['Author'] . '</a>';
 						$plugin_meta[] = sprintf( __( 'By %s' ), $author );
 					}
 					if ( ! empty( $plugin_data['PluginURI'] ) )
-						$plugin_meta[] = '<a href="' . $plugin_data['PluginURI'] . '" title="' . esc_attr__( 'Visit plugin site' ) . '">' . __( 'Visit plugin site' ) . '</a>';
+						$plugin_meta[] = '<a href="' . $plugin_data['PluginURI'] . '" title="' . esc_attr__( 'Visit plugin site' ) . '" target="_blank">' . __( 'Visit plugin site' ) . '</a>';
 
 					$plugin_meta = apply_filters( 'plugin_row_meta', $plugin_meta, $plugin_file, $plugin_data, $status );
 					echo implode( ' | ', $plugin_meta );