I tried out this FF toolbar.

 It did work well, and has lots and lots of features.

Personally, I hate anything which has it's own stupid extra toolbar to clutter up my screen.

I like the stuff I cobbled together myself better. I have booklmarklets which, when you highlight a word or words, search ebay and open the page in a window either maximized, or minimized, or a tab in the background. If no text is highlighted, a window to type your terms into appears. You can find good ones at the rockboss2000 about me page, then modify them to suit you or take the bits you want from his code, is how I did it.
I also have slimsearch extension, which opens in a foreground tab.

By using bits of code and the search bookmarlets generator, within 10 minutes you can make your own ebaY search tools.

All the rest of what  it included are already bookmarked or easy to get to (for me.)

One thing I did notice, in the tools area, there was a link/ menu item for
"reinstate acccount"

Hilarious!!!!

Makes it handy when the buffoons from greedbay nix you for using your own pix, or they claim they did not get your automatically deducted paypal funded ebay fees payment or whatever, and you get NARUd like 3 times in 2 weeks for their mistakes/incompetence, & they won't even bother reading your emails.

IDIOTS!!!

Seems those students have used ebaY alot, & know IT well...

hardy har har.