I am running OpenSuSe 11 and I am having the same problem. The bookmark backup folder, bookmarkbackups, captures the changes, though. The problem is that the backup files are not HTML format! I will continue to look for a solution.
. . . response from Mozilla forums, thanks to cor-el
Firefox 3 stores the bookmarks and the browser history in places.sqlite and no longer creates a HTML backup by default.
You can export the bookmarks in Firefox to a HTML file: Bookmarks > Organize Bookmarks > Import & Backup > Export HTML
If you want Firefox 3 to create an automatic html backup when you exit Firefox then you can set the pref browser.bookmarks.autoExportHTML to true on the about:config page.
You can also create a JSON backup:
Bookmarks > Organize Bookmarks > Import & Backup > Backup
Last edited by jsparksa; 11-08-2008 at 09:24 PM.
Reason: update from mozilla.org