Reported by Kelly Robinson:
Search for a term (e.g. “ant”), click one of the results, and wait a few seconds. The list of versions will momentarily appear, then the UI switches back to the list of search results.
If you comment the line below, search works (but breaks browser history and the back button, so isn’t actually a fix):
I have no idea why Firefox behaves differently than Chrome or Safari. Alin Dreghiciu might need to investigate this one.