Update Scanner
Monitors web pages for updates. Just press Scan. You will be told of any websites that have been changed since the last scan.
Supported
versions: Firefox 1.5 - 2.0.0.* ALL
Notes / Comments: To add the Update Scanner icon to your toolbar:* Right-click the toolbar and select Customize.* Drag the Update Scan icon onto the toolbar.------The scanner ignores changes to anything inside HTML tage, including images, flash banners and scripts. ------Buggsy: As you suggested, the next version will include an autoscan feature..
Categories: Bookmarks, Miscellaneous, Search Tools

Update Scanner sidebar:

Edit dialog showing "Change Threshold" setting:
