PabloHoffman writes "Have you ever wondered what would it take to make your (unfortunately) IE-only web app to work on Firefox?. IBM published an interesting article about migrating Internet Explorer specific web applications to Mozilla-based browers. It covers basic cross-browser development techniques, and some developing strategies for overcoming the differences between both browsers."
Some programming languages manage to absorb change, but withstand progress.
-- Epigrams in Programming, ACM SIGPLAN Sept. 1982