chriscz
commented
2 months ago I'm not seeing this myself, unfortunately cannot help much.
You can try to look at the browser console to see what it's spewing out, that's under: "More Tools" > "Browser Console", this console shows logs by extensions.
If there's a way to export / backup your current setup and re-import you might get lucky.
It started this week, so I'm wondering if it's a recent problem for everyone (hopefully with an iminent update to fix the problem).
Basically - it's still on my browser taskbar as usual, but when I click on it there are no sessions there anymore, it's a solid 0, and when I go to save a session there's the red bar appearing telling me it's failing to save.