Comment 66 for bug 255263

Paris, does it happen frequent and quickly enough that if you uninstalled delicious you could tell if that had an impact?

I see this once every few days with FF3 - I recently installed delicious, but I can't say for sure that my first occurrence didn't precede delicious.

Symptoms:
* only happens in one window of several FF windows
* both enter key and click of entries in history drop down in URL bar fail
* autocomplete works, but hitting enter from any selected autocomplete item
fails
* open URL in new tabs from existing tabs in that window works.
* going offline and back online has no effect
* nothing in console
* enter in search bar/field works fine

Bug 228303 is quite old reporting something similar, but not known yet if
reporter was using delicious (I think it predates the extension).