https://bugzilla.mozilla.org/show_bug.cgi?id=541130 The bug I see is using thunderbird 24.6 which is the latest update on centos 6.5. The issue is that every time I open an email with some "+" somewhere in the source (which I didn't traced yet) I get annoying message: An error occurred while loading or saving configuration information for thunderbird. Some of your configuration settings may not work properly. =In the details section I get: Bad key or directory name: "/desktop/gnome/url-handlers/EDH+CAMELLIA/command": `+' is an invalid character in key/directory names Bad key or directory name: "/desktop/gnome/url-handlers/EDH+CAMELLIA/command": `+' is an invalid character in key/directory names Bad key or directory name: "/desktop/gnome/url-handlers/EDH+aRSA/command": `+' is an invalid character in key/directory names Bad key or directory name: "/desktop/gnome/url-handlers/EDH+aRSA/command": `+' is an invalid character in key/directory names Bad key or directory name: "/desktop/gnome/url-handlers/EECDH+aRSA+AESGCM/command": `+' is an invalid character in key/directory names Bad key or directory name: "/desktop/gnome/url-handlers/EECDH+aRSA+AESGCM/command": `+' is an invalid character in key/directory names Bad key or directory name: "/desktop/gnome/url-handlers/EECDH+aRSA+SHA384/command": `+' is an invalid character in key/directory names Bad key or directory name: "/desktop/gnome/url-handlers/EECDH+aRSA+SHA384/command": `+' is an invalid character in key/directory names Bad key or directory name: "/desktop/gnome/url-handlers/EECDH+aRSA+SHA256/command": `+' is an invalid character in key/directory names Bad key or directory name: "/desktop/gnome/url-handlers/EECDH+aRSA+SHA256/command": `+' is an invalid character in key/directory names ##end By the last message of the bug-report I understand that RH released a bug-fix\patch that should help with the issue. Before I file a bug, anyone else is having the same issue? anyone has the patch from the bug-report? Thanks, Eliezer