diff --git a/src/Calypso-Browser/ClyTabManager.class.st b/src/Calypso-Browser/ClyTabManager.class.st
index c2413ae6..727b35ed 100644
--- a/src/Calypso-Browser/ClyTabManager.class.st
+++ b/src/Calypso-Browser/ClyTabManager.class.st
@@ -97,6 +97,10 @@ ClyTabManager >> addTool: aBrowserTool [
 	tab when: #tabDeleted send: #tabDeleted: to: self.
 	tab when: #tabSelected send: #tabSelected: to: self.
 	tab label on: #doubleClick send: #toggleFullWindowTabs to: browser.
+	"Following code is required to fix the problem 
+	when doubleClick handler of tab label disables event processing by its parent, TabMorph"
+	tab label on: #mouseDown send: #mouseDown: to: tab.
+	tab label on: #mouseUp send: #mouseUp: to: tab.
 	tabMorph addTab: tab
 ]