Add Bookmark dialog not working - Firefox
This issue was reported in Firefox 1.5 and may no longer apply to Firefox 2 or above.
- A corrupt localstore.rdf file in your Firefox profile folder can cause the Add Bookmark dialog to fail.  To fix it, see this article.
- The Bookmark Duplicate Detector extension may also cause the Add Bookmark dialog to fail . If updating the extension doesn't help you should uninstall it.
In Firefox 3, if bookmarking a page has no effect see Locked or damaged places.sqlite.