HUD doen't search in bookmarks in firefox anymore

Hi,
I have just upgrade from 12.04 to 14.04
Sadly I lose a daily function for me

How to reproduce:
- Open firefox
- Mark a website in bookmarks and change its name for "foo"
- Restart firefox
- Open the HUD and enter foo
Result: the HUD doesn't display this bookmarks

I think it is a regression, I used a lot this function on Ubuntu 12.04, it was my setup to go in my boobmarking website.

Thank you

Ubuntu 14.04 LTS x64, unity 7.2.2

Oh strange, I wanna take screenshot and I see an interresing behavior:
How to reproduce this behavior:
- Open firefox
- Mark a website in bookmarks and change its name for "foo"
- Restart firefox
- Open the HUD and enter foo
Result: the HUD doesn't display this bookmarks
- But now keep firefox open
- Open/close the dash...
- retry to enter foo in HUD
Result 2.0 : the HUD display this bookmarks (screenshot3.png)

I hope it will help you