It does work on Firefox, but it always takes me a few tries. You also can't leave the tab while it's 'loading', at least it never works for me if I do that. Each character you type in has lag too.

I've been waiting for them to send me a survey link so I complain about all their horrible upgrades, but I guess they know its bad because they've never sent one. Normally companies don't stop spamming you with survey requests when they change something.