Works with Firefox 2.0 - 3.0b5pre, SeaMonkey 2.0a - 2.0a1

Version 1.80:
- Possibility to "nest" Fast Dial pages. Open thumbnail "Properties" window and check "Group" checkbox. Then click on a thumbnail to open a sub-page.

Version 1.82:
- "Category" is renamed to "Group"
- "Set URL" dialog is renamed to "Properties".
- Refresh timeout is now global and is specified in preferences, while each thumbnail has "Refresh" checkbox.