I installed AG extension in Firefox public and nightly builds and I still have the same issue.
Each time I open a new tab AG is disabled and I have to turn it on manually.
Is it a normal behavior? I did not find any settings to keep AG always enabled.
Yeah, most likely so. In this case it's definitely not normal.
Bruno, do you have some other extensions installed?
Are there any errors on the extension background page's console?
Sorry for the delay in my response. Since the latest update of FF 92.0 (64-bit), the problem disappeared. So, I really don't know what happened here, except magic