diff --git a/src/calibre/gui2/book_details.py b/src/calibre/gui2/book_details.py
index dd12080d7f..8e3e8b10de 100644
--- a/src/calibre/gui2/book_details.py
+++ b/src/calibre/gui2/book_details.py
@@ -8,7 +8,7 @@ __docformat__ = 'restructuredtext en'
 import os, collections, sys
 from Queue import Queue
 
-from PyQt4.Qt import QPixmap, QSize, QWidget, Qt, pyqtSignal, \
+from PyQt4.Qt import QPixmap, QSize, QWidget, Qt, pyqtSignal, QUrl, \
     QPropertyAnimation, QEasingCurve, QThread, QApplication, QFontInfo, \
     QSizePolicy, QPainter, QRect, pyqtProperty, QLayout, QPalette
 from PyQt4.QtWebKit import QWebView
@@ -18,7 +18,7 @@ from calibre.gui2.widgets import IMAGE_EXTENSIONS
 from calibre.ebooks import BOOK_EXTENSIONS
 from calibre.constants import preferred_encoding
 from calibre.library.comments import comments_to_html
-from calibre.gui2 import config, open_local_file
+from calibre.gui2 import config, open_local_file, open_url
 from calibre.utils.icu import sort_key
 
 # render_rows(data) {{{
@@ -412,6 +412,12 @@ class BookDetails(QWidget): # {{{
             self.view_specific_format.emit(int(id_), fmt)
         elif typ == 'devpath':
             open_local_file(val)
+        else:
+            try:
+                open_url(QUrl(link, QUrl.TolerantMode))
+            except:
+                import traceback
+                traceback.print_exc()
 
 
     def mouseDoubleClickEvent(self, ev):
diff --git a/src/calibre/gui2/dialogs/book_info.py b/src/calibre/gui2/dialogs/book_info.py
index 1384c27b8c..eac8461299 100644
--- a/src/calibre/gui2/dialogs/book_info.py
+++ b/src/calibre/gui2/dialogs/book_info.py
@@ -9,7 +9,7 @@ from PyQt4.Qt import QCoreApplication, SIGNAL, QModelIndex, QTimer, Qt, \
     QDialog, QPixmap, QGraphicsScene, QIcon, QSize
 
 from calibre.gui2.dialogs.book_info_ui import Ui_BookInfo
-from calibre.gui2 import dynamic, open_local_file
+from calibre.gui2 import dynamic, open_local_file, open_url
 from calibre import fit_image
 from calibre.library.comments import comments_to_html
 from calibre.utils.icu import sort_key
@@ -22,6 +22,8 @@ class BookInfo(QDialog, Ui_BookInfo):
         self.setupUi(self)
         self.cover_pixmap = None
         self.comments.sizeHint = self.comments_size_hint
+        self.comments.page().setLinkDelegationPolicy(self.comments.page().DelegateAllLinks)
+        self.comments.linkClicked(self.link_clicked)
         self.view_func = view_func
 
 
@@ -41,6 +43,8 @@ class BookInfo(QDialog, Ui_BookInfo):
         screen_height = desktop.availableGeometry().height() - 100
         self.resize(self.size().width(), screen_height)
 
+    def link_clicked(self, url):
+        open_url(url)
 
     def comments_size_hint(self):
         return QSize(350, 250)
@@ -115,6 +119,7 @@ class BookInfo(QDialog, Ui_BookInfo):
             lines = [x if x.strip() else '<br><br>' for x in lines]
             comments = '\n'.join(lines)
         self.comments.setHtml('<div>%s</div>' % comments)
+        self.comments.page().setLinkDelegationPolicy(self.comments.page().DelegateAllLinks)
         cdata = info.pop('cover', '')
         self.cover_pixmap = QPixmap.fromImage(cdata)
         self.resize_cover()