If you’re using Firefox 3.0.x, just open the Help menu and select Check for Updates…
If you’re using anything else, download Firefox 3.5 from https://www.getfirefox.com.
Some people like to set the Firefox home page to display their bookmarks. That was easy in Firefox 2, when bookmarks were stored in an HTML file, but it’s a little tougher to figure out for Firefox 3. Not only can it be done in Firefox 3, but it works even better.
Just set your home page to the following URL:
That’s it! It doesn’t require you having to find your profile folder, and bookmark folders can be collapsed or expanded individually. Plus the search box at the top of the page will work.