Comment 97 for bug 411358

Environment: CentOS release 6.5 x86_64 (KDE 4.11.2)
Thunderbird: 24.3.0 (safe mode)
Other: gnome-desktop 2.28.2, gtk2 2.20.1, xulrunner 17.0.10

Mail contains:
 PATH : /usr/local/bin:/usr/bin:/system/Windows/system32:<-snip->:/tools/windows/portable/Notepad++:<-snip->

Error message:
An error occurred while loading or saving configuration information for thunderbird. Some of your configuration settings may not work properly.
Details:
Bad key or directory name: "/desktop/gnome/url-handlers/Notepad++/command": `+' is an invalid character in key/directory names
Bad key or directory name: "/desktop/gnome/url-handlers/Notepad++/command": `+' is an invalid character in key/directory names