Comment 5 for bug 1060888

Once per day seems potentially frustrating to me as well, in that it's not an easy behaviour for the user to come to understand. I am imagining the following scenario (this kind of thing happens to me frequently):

1. User opens page
2. User sees navigation prompt, but clicks on the page anyway out of habit dismissing the prompt
3. User tries to trigger the prompt appearing again but can't
4. Next day user sees the prompt again and can't understand why.

This would make me uncomfortable as a user.