peter It might be a consequence of the update yesterday. Let's first verify that the data is going to the stream. When you go to the stream view (Streams -> select your stream), do you see new data in the "Recent Events" window?
If NO: it sounds like it is still a streamr-client problem. The newest 2.0.0 beta is quite stable, you could try it. It might also remove the warnings you're seeing in Firefox, as the 2.x version uses ethers.js instead of web3.js. To get the latest 2.x beta:
npm install firstname.lastname@example.org
If YES: it is likely a problem with your Canvas, which might have not resumed operations normally after the update. When you open your Canvas, do you get any warning notifications? Do you see data on the Canvas? If you get a warning and/or can't see data, can you try stopping and restarting the Canvas?