Hey Brian really sorry you have to deal with this. Please check out your Addons area of Firefox & disable all your addons or just the ones I've listed below. As they as are known to interrupt things like payments on websites or logging into websites: * [https://support.mozilla.org/questions/1455325#answer-1665262 Disconnect (broke payments on Stripe.com)] * [https://support.mozilla.org/questions/1445966 ClearURLs (breaks random websites like Amazon Video, Udemy, etc. because it strips too much out of the url)] * [https://support.mozilla.org/questions/1368050#answer-1484115 Ghostery (once broke logging into Barclays bank site)] * Disable any addon that blocks tracking, ads or scripts like Adblock Plus, Adblocker Ultimate, NoScript, DuckDuckGo PE, Disconnect, Ghostery, Privacy Badger, uBlock Origin, etc. To disable or remove addons, read this article: [[Disable or remove Add-ons]] After doing this, try going back to GoFundMe and doing a test donation.