What can cause a persistent “Reload the page to get source for” error in firebug?

Question

I\'m trying to debug the javascript of a specific page, and I keep seeing

Reload the page to get source for page.htm in Firebug.

On Chrome, I\'m

Answer 1

I had the same issue, but had simply overlooked one obvious thing.

I had the noScript Firefox extension installed and hadn't enabled scripts from all the sources on the page, and it was blocking and causing that exact message persistently.