What search engine are you using?

It is always possible that eBay is differentiating between browsers and gives different results based upon earlier visits. You can try to clear the cookies in both browsers to see if that has effect.

"Clear the Cache":

• Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

• Firefox/Tools > Options > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"

ebayseller said

using the same search words on internet explorer ebay, I get more results than when I use ebay on FireFox > It is cutting out some of results when using Firefox

Deleting the cookies seemed to correct the problem, thank you

Thanks deleting the cookies seemed to correct the problem thank you