memory-efficient web-browser [closed]

Any advice for a memory-efficient web-browser that runs under Windows XP? (And by memory-efficient, I mean one that uses the least physical memory. I'm running into limitations on my PC.)

Or are there ways to tweak settings on web browsers so they are more memory-efficient?

Opera seems pretty good, at least a lot better than Firefox or Safari.

edit: (just as a note, my particular application for this, is that I am trying to use a web application at the same time both as a user and as an admin. I can't login with both logins at the same time on the same browser because they use session cookies that clobber each other. So I'm looking for a lightweight browser to run the admin functions that come up occasionally while I am doing mostly user work.)

Solution 1:

Opera sounds very reasonable to me too. There are some tweaks and performance hints available on this wiki page too.

See also this (old) comparison. Every addon and plugin needs memory, so if you get rid of flash, you can save much.

Solution 2:

Not scientific (/hat tip to Randolph's comment) but I'm having great luck with Google's Chrome on an old Pentium 2 ThinkPad with 288 MB RAM running XP.

My second favorite is K-Meleon which is perhaps more light-weight, but not as fast with the JavaScript stuff which is where Chrome really shines on this old rig.