How to force reload of favicons in firefox

[SevenDragon]

Hi.
I have many bookmarks in firefox without displaying it´s favicon.
Is there anyway to force the browser to refresh the favicons?

I found some addons but they can only refresh the favicon one site at the time.
Thank you.

 

[StalkeR]

Try this: open all the bookmarks and wait to load all sites,when you see this icon it should be done.

 

[mikedl]

You're right, StalkeR, until the bookmark has been clicked on and visited, especially in the case of imported bookmarks, the favicon will not show up until such an event occurs. In the following screenshot, it is evident which bookmarks I have not visited since I imported them: