--- comm/mail/components/shell/nsGNOMEShellService.cpp.orig 2018-09-19 15:07:33.630000000 +0200 +++ comm/mail/components/shell/nsGNOMEShellService.cpp 2018-09-19 15:08:31.450000000 +0200 @@ -98,6 +98,12 @@ NS_ENSURE_SUCCESS(rv, rv); rv = appPath->GetNativePath(mAppPath); + + /* This path of thunderbird is hardcoded for the default path setting + * And the above code is not used. + */ + mAppPath.Assign ("/usr/bin/thunderbird"); + return rv; }