[rz2k]

As a professional, there should be many decisions your client hires you to make for them. Unless there is specific regulation, competitors can undercut you by taking shortcuts in any number of areas. You can choose to try to win a race to the bottom, or work on establishing your reputation as premium quality developer.

I use Firefox, and I rarely see a site that doesn't work because I'm not using Chrome. Firefox market share is somewhere around 5% now, and most people will use another browser if they need to for their bank or other important site.

If a business owner gets a call from a Firefox user who can't access their site, it's the developer's fault. Treating the requirements of an estimated 15% who need a small number of aids as though it is a decadent extra seems like a problem of professional standards.