By default, Firefox reloads Live Bookmarks every 60 minutes. If this is not frequent enough for your needs, you can change the update rate by adding an unlisted preference to about:config.
1. Open Firefox 3.
2. In the Location Bar, input about:config.
3. Click to get past the warning message that appears.
4. Right-click anywhere in the Preferences listing.
5. Click on New and select Interger.
6. When prompted for the preference name, input the following:browser.bookmarks.livemark_refresh_seconds
7. Click OK.
8. When prompted to Enter integer value input the desired update rate in seconds (for example 2 minutes would be input as 120).
9. Click OK.
