UI fails to load in Firefox due to race condition

[perilsensitive]

Enabling nagui integration creates a race condition when loading the nagui integration library. The URL used to get the lexicon from cmdb gets replaced with the one used to query nagui.

This appears to happen only in Firefox.

[perilsensitive]

I finally got around to trying the nagui 2.3.0 update, and still have the same problem.