Which is better? Firefox or Opera?

firefox is fast then opera...but opera have a one great advanture that u can open wap sites on it

I used Opera before and its fine with me but since I found the best browser I'm going to stick using Firefox than Opera.

I'm using the latest Opera too and I must agree with you that it is great and fast. But my main browser is Firefox its as speedy as Opera but I could customize my firefox to my needs which I can't do with Opera. Its a good idea actually to have an alternative browser in case one has trouble or one need to see how various sites are rendered.

I think Firefox is more better than Opera because Firefox support more speed.It downloads sites early.

I prefer using Mozilla Firefox rather than Opera. It has a lot more useful functions and is much faster (in my humble opinion) than Opera.

I use Opera, it has own style. I like it. i like some small details in it like "paste and go", "copy to note" , "go to url", searching bookmarks and history through address bar, personal bars, tab bar ... But in the other hand, Firefox's add-ons work great.

I'm prefer use firefox than opera.. firefox more faster than opera

I've used Opera before and it looked neat. That was 5 years ago. I'm pretty much used to Firefox these days.