I am a fan of Free software, and all you have to do is look at my machine
From firefox as my browser avast as my antivirus open office and a myriad of other tools from a variety of sites
I have used a large selection of OEM software and generally resort back to freeware as my longterm solution
to quote the Free Software Foundation
The Free Software Foundation (FSF), established in 1985, is dedicated to promoting computer users’ rights to use, study, copy, modify, and redistribute computer programs.
I sourced this link from this Xaprb’s blog link for the article is here “Firefox or opera on slow hardware”