eBay Toolbar for Firefox
You probably wondered that there’s no eBay toolbar for Firefox on the official eBay toolbar page, it only available for Internet Explorer. But don’t worry, there’re quite many developers already developed eBay toolbar for Firefox, several of them are Myebayfox and Foxybay. Personally, I use Myebayfox, since it works with newest version of Firefox (Firefox 3.6).
Myebayfox Features

Myebayfox - eBay Toolbar for Firefox
This toolbar lets you take eBay with you. Search eBay from any site, quickly access all of your auctions, and enhance eBay with great tools like price comparison, consumer reviews, and shipping information.
The eBay Toolbar also displays preview pictures for each and every item in the search results, even if the seller has not paid for it. This saves you time by not making you click every link in the list just to see a picture.
You can access all menu lists by clicking the small down arrow at the right of the menu. As in previous versions, clicking on the menu button itself (instead of the down arrow) will take you to that section of “My eBay”.
Tracking auctions
To start tracking auctions, click on the “Tools” menu, and click “Log in to see updates…” at the bottom. You will be taken to an eBay login page where you can link the eBay Toolbar to your account. Note that eBay does not provide your password to the toolbar, it simply allows the toolbar to receive updates from eBay. To finish the sign up process, enter your eBay username and password, and click “Sign In”.
On the next page, click “I Agree”. Again, no personal information is provided to the toolbar, other than the items you are bidding on and your favorite sellers and searches.
Click here to download eBay Toolbar for Firefox (Myebayfox)











I use FoxyBay, loads of good featues and is very fast.