If you spend a lot of time on the Internet then you've probably accumulated dozens hundreds of bookmarks. Here are a few Firefox extensions to help keep them -- and you -- organized.

Bookmark synchronizer Foxmarks is a must-have if you like to access your bookmarks from multiple locations. Install the Foxmarks extension on your laptop and your desktop PC, and whatever Web site you add to your bookmark manager on one machine will automatically show up on the other. You can also access your bookmarks via the Web from any computer with Internet access, no download required.

People who use the Opera Web browser often rave about its "Speed Dial" function, which allows you faster access to sites you visit regularly than searching through a long list of bookmarks. Though similar functionality isn't available natively in Firefox, there are a couple of extensions that get the job done. Speed Dial for Firefox places a button on your toolbar; click it to bring up thumbnails of up to nine Web pages whose addresses you've pre-programmed. Adding a Web site to the list is easy: simplfirefox; ffy right-click and select "Set as Speed Dial." Fast Dial does the same thing as Speed Dial, and also adds middle-click functionality and keyboard shortcuts.

If you like your browser's address bar to do your thinking for you, then take a look at Autocomplete Manager. This little extension checks what you type in the address bar for matching bookmarked Web sites; it even checks page titles and names you've assigned to the bookmarks in your folders.

Want to give your boring old bookmark folders a face-lift? Use Favicon Picker to decide what icon you want appearing next to each bookmarked Web site. Once installed, simply open Firefox's Bookmark Manager and right-click on a bookmark. Choose "Properties", then the "Browse" button in the Icon section. Select a .jpg to replace the existing default icon and click "OK".

New to the whole concept of bookmarks? Then make sure this is the first site you save to your Bookmark Manager.