i don't find that, but maybe i am not using the same websites. can you give some examples?
I can't give you any specific examples, but as a Firefox user, I can tell you that many forms, especially e-commerce checkouts forms, are slightly broken in Firefox. They are often broken enough that you must switch to Chrome to submit a payment.
This really surprises me. I've used Firefox exclusively for years and have never not been able to complete an action because of it (unless it was my own fault - disabling required third party scripts, etc). Why can't you give examples - is it just memory, or something else?
It's never bigger places like Amazon, I've only had it happen on little shops like websites that sell Indie games. I don't remember which ones it's happened on, but it's happened a few times. I shouldn't have said "many," it's just that it's quite irritating when it happens.
This happened to me yesterday trying to buy Starlink Beta after getting the email from them that it's finally available in my city. I followed the link and couldn't fill out the credit card information. The form fields just didn't respond to typing. I turned off uMatrix and turned off Firefox tracking protection, and still nothing. Switched to Edge and it worked fine.
So far the only thing that I've found to be broken is Google's Slideshow presentation mode.
Works fine for me. The only site that is broken for me if removeddit