Diễn đàn hỗ trợ Firefox

So this problem keeps happening to me - I click "upload" on a website and nothing happens. For example, trying to upload photos to my website or upload files to a platform. Frustrating. To work around it I've been using a separate tab of Google chrome but it's such a pain to keep swapping back and forth. Please help!!

Hello! I have some proplem to update Firefox on all my six computers. It is also impossible to download a new Firefoxand install on a clean computer . The message I get is as the image below. Regards/Sture Axelsson sobaxe@gmail.com