--- a/KeePass/App/AppHelp.cs

+++ b/KeePass/App/AppHelp.cs

@@ -65,9 +65,7 @@ namespace KeePass.App

 			{

 				try

 				{

-					string strFile = AppHelp.LocalHelpFile;

-					if(!string.IsNullOrEmpty(strFile))

-						return File.Exists(strFile);

+					return Directory.Exists(@"/usr/share/doc/keepass/Chm/help/");

 				}

 				catch(Exception) { Debug.Assert(false); }

@@ -130,17 +128,16 @@ namespace KeePass.App

 			// Unblock CHM file for proper display of help contents

 			WinUtil.RemoveZoneIdentifier(strFile);

-			string strCmd = "\"ms-its:" + strFile;

+			string strCmd = "/usr/share/doc/keepass/Chm/help/";

 			if(!string.IsNullOrEmpty(strTopic))

 			{

-				strCmd += "::/help/" + strTopic + ".html";

+				strCmd += strTopic + ".html";

 				if(!string.IsNullOrEmpty(strSection))

 					strCmd += "#" + strSection;

 			}

-			strCmd += "\"";

-

-			if(ShowHelpLocalKcv(strCmd)) return;

+			else

+				strCmd += "../index.html";

 			string strDisp = strCmd;

 			try

@@ -161,7 +158,7 @@ namespace KeePass.App

 			}

 			catch(Exception ex)

 			{

-				MessageService.ShowWarning(strDisp, ex);

+				MessageService.ShowWarning("x-www-browser " + strDisp, ex);

 			}

 		}