We're not saying Firefox isn't being maintained, we're saying donations don't go to Firefox, they go to the foundation which is also apparently funded by Firefox. Something really needs to change... We shouldn't have heard about basically what is crucial for developers being scrapped to keep the show running.
No, Firefox is developed by Mozilla Corporation, which is a for-profit company owned by Mozilla foundation. As I understand it, this opens up the possibility of revenue sources not available to a non-profit for Firefox, but otoh, means you can't donate to support Firefox.