adnauseum addon icon doesn't stay

[astro46]

I am using vivaldi, a chromium based browser. The problem that I have been having for some time is that adnauseum is the only icon, in the taskbar list of addons, that won't stay where I place it. I open vivialdi and find that has shifted itself over to the left, no. 1 position. I move it over to the right, and some time later, there it is again , on the left. I know it is an important addon, but I would still like it to stay put. It doesn't need to be no. 1.

What is going on?

[dhowe]

see #2482