Get Opera-like Speed Dial in Firefox
What's Speed Dial? Basically, Opera 9.2 provides you with screenshots for up to 9 websites when you load the browser. It's kind of like having 9 different homepages, which you can quick faster than you can pull up a bookmark toolbar. You can also refresh the screenshots.
The Firefox Speed Dial extension has the same basic idea. You can set it to show your Speed Dial page every time you open a blank window or a blank tab. It doesn't have all of the features of the Opera version. For example, you can't rearrange the order of your pages by dragging and dropping. And it appears that you cannot refresh the screenshots.
But still, if you want some of the benefits of using Opera without, you know, using Opera, you might want to check it out.