This tool is great for sites that use lots of checkboxes like a registration form or your Hotmail or Yahoo! inbox. Imagine this: Your Hotmail inbox has 10 spam messages and you don't want to click on 10 separate checkboxes just to select them all. Now you can select them all just by drawing a box around them! To begin drawing a box, your mouse MUST first be positioned over one checkbox. Then drag to activate this tool.

FoxVox will speak any text you highlight in a web page. FoxVox is ideal for having blogs, email, news articles, and ebooks read to you while you surf the web or do other work. FoxVox supports speech in many different languages. It runs under Windows and Linux without any additional software.

Add a Fast Forward button to your browser. Pressing it forwards you to the top page people visited next.

It's like Amazon recommendations for webpages - "People who viewed this page also viewed this other page next".

Firefox3 has the function of reloading an image that couldn't be loaded('Show Image' in context menu). However, Fx cannot reload two or more images at a time.This extension exactly adds that function.

The extension "Show Picture" has similar function, I know.The advantage of mine is this: The item will not be displayed when it is unnecessary. That is, the item will not be displayed when the range of the selection doesn't include images that failed to be displayed.

Power Twitter adds features to the Twitter Web interface including displaying Flickr photo and YouTube videos. TinyURL links are also unwound to show the destination page title. Finally, any additional social information (blogs, photos, etc.) that match for the Twitter user are displayed in a news feed in the side bar of the Twitter page.