Bug 1015619 - Reduce browser.slowStartup.timeThreshold from 45 to 40 seconds. r=dolske

browser/app/profile/firefox.js

@@ -278,7 +278,7 @@ pref("browser.startup.page",                1);
 pref("browser.startup.homepage",            "chrome://branding/locale/browserconfig.properties");
 
 pref("browser.slowStartup.notificationDisabled", false);
-pref("browser.slowStartup.timeThreshold", 45000);
+pref("browser.slowStartup.timeThreshold", 40000);
 pref("browser.slowStartup.maxSamples", 5);
 
 // This url, if changed, MUST continue to point to an https url. Pulling arbitrary content to inject into