Sync failed in web browsers

[mockinbirdy]

What happened?

Hello, first off, I changed nothing in my browser or apps.

First, I see this. As you can see it claims sync is disabled but it is not.

Then I click on sync to sync it manually but it returns this - sync failed.

Steps to reproduce the problem

read above

Version

latest web

Platform/OS

Firefox

Relevant log output

No response