It could just be a lazy/inept development company doing the site. I’ve worked on a few sites recently where they haven’t worked on non-ie browsers and it’s only been a small amount of work to make that happen, and the people who wrote it originally have trolled out the old ‘stability and security issues’ chesnut as the reason why and told us not to bother fixing it.

M&S probably don’t know any better and have accepted this as a matter of course………

It’s a bit sad really that in this day and age people still seem incable of putting in the extra bit of effort to make a cross browser standards compliant website.

🙁