If Marvin is crashing or otherwise behaving strangely, we might ask you to check for errors in your browser's console so that we can figure out what's going on.

Follow the instructions below to open the console, then send us everything that's red! You can copy and paste or take a screenshot. It's often helpful if you click the ▸ to expand errors:

First, right click the page and click "Inspect" or "Inspect Element":
​

Next, find the "Console" tab.  You may have to click the » symbol to find it:
​

Look for a red error message and send us a screenshot or copy and paste the text.  Be sure to click the ▶ symbol to expand the error message!
​

First you'll need to enable the Develop menu. Press Cmd+, (or click Safari → Preferences):

then go the Advanced tab and click the checkbox at the bottom to "Show Develop menu in menu bar":

Now you can right click → Inspect Element:

and then click the Console tab. If you don't see this tab, then click the "+" button on the right:

and click Console from the list of icons:

In Internet Explorer, press F12 on your keyboard to open the developer tools, then click the Console tab.  You may need to reload the web page with the console open in order to see any errors.

It's also possible to open the console in the desktop app. Go to Help in the application menu:

and select Open Dev Tools:

On Windows and Linux, press Alt on your keyboard to make this menu appear.