So which bookmark add-ons for Firefox are downloaded most often?  Here are the top ten most downloaded bookmark extensions for the browser.

SmarterFox – Browse faster by speeding up common tasks – faster downloading, searching, visiting favorites, copy & paste, and more.
Xmarks (formerly Foxmarks) – Xmarks is the #1 bookmarking add-on. Install it on all your computers to keep your bookmarks and (optionally) passwords backed up and synchronized.
Delicious Bookmarks – Delicious Bookmarks is the official Firefox add-on for [...]

There are a number of add-ons for Firefox that clone Opera’s Speed Dial feature.  There is one add-on with a different twist.  Most open your tabs in this fashion, but Fast Dial does something different.

This extension will replace your “about:blank” page with a panel of thumbnails of your favorite web sites.  To add sites to the page, all you do is click on an empty cell, assign a URL and click OK.
You can also add sites by right-clicking on the [...]

Now we all use speed dial on our phones to quickly dial up those numbers we often use but never remember. It looks like Firefox is getting into the speed dial game with the extension with the same name. The Speed Dial extension for Firefox gives you a neat thumbnailed preview of nine links you can quickly switch between.
With Speed Dial, you can easily access your most used websites. To show the Speed Dial tab, use the Speed [...]