Closing the tab and opening the same link in a new tab seemed to resolve the issue.
I'm not sure if any of the prior attempts factored in, so I will list them as well. To be clear, none of these worked, but may have paved the way in some fashion.
- Restarting Firefox
- "Clear Activation List" on Firebug
- Save page under new filename and load the new page
- Uninstalling add-ons (all of them)
- Create new profile and load page on that profile
- Add a
<!DOCTYPE html>
to the top - Add
type="text/javascript"
to script tags - Add
charset="utf-8"
to script tags - Add
<meta charset="utf-8">
in<head>