Are you sure you want to go to an external site to donate a monetary value?
WARNING: Some countries laws may supersede the payment processors policy such as the GDPR and PayPal. While it is highly appreciated to donate, please check with your countries privacy and identity laws regarding privacy of information first. Use at your utmost discretion.
Firefox 77.0b9 x64, Microsoft Windows 10.0.18363.836, Tampermonkey 4.10.6112.
I've made a few updates. Can you please update once and check again?
Re: @Korb:
This could also be an issue with Firefox Content Security Policy with respect to Tampermonkey. See open issue here.