I have written an automatic martingale player. It just needs to be copy & pasted into the webconsole of Firefox and keeps on playing until it either reaches a certain amount of rounds, or a stake limit (with audio alert).

If anybody is interested, pm me an offer and I'll clean up the code (it's not obfuscated so you can easily work on it).

It's for scientific/educational purposes and losses may occur. Sold as is.