This has been happening for months now, on multiple devices (I have tried at least 3 different devices), and on multiple networks. I have read the articles in here, but they just want me to check network configuration which is exactly the same for all browsers. If I restart firefox it starts working again. How can I prevent it from breaking randomly? This is the only browser having issues, I'm almost positive is some bug and not a configuration thing, given that it happens under multiple circumstances and devices, while Edge and Chrome simply keep working just fine. There is no consistent repro I can give, afaik it is just random, at some point Firefox just decides to stop working and I have to restart it. This disrupts my work and browsing activities as I can lose progress on input forms and similar actions.