[Description:] When using devmode true or new profile, the Normandy is run twice regardless of the recipe execution timer (app.normandy.run_interval_seconds). (usually within minutes) [Steps:] -for first_run 1. Create an empty profile, access its location, add an empty prefs.js, in which you add: user_pref("app.normandy.logging.level", 0); 2. Open FF with the above profile. (first run) 3. Open browser console. [Steps:] -for dev-mode on 1. Create an empty profile, access its location, add an empty prefs.js, in which you add: user_pref("app.normandy.logging.level", 0); user_pref("app.normandy.dev_mode", true); 2. Open FF with the above profile. (devmode on) 3. Open browser console. [Actual Result:] Normandy fetches and executes recipes two times within minutes. [Expected Result:] Normandy fetches and executes recipes immediately after first open, then the next fetch is after time equal to value of app.normandy.run_interval_seconds