Steps to reproduce:
- Install the "Top Sites Button" extension.
- Open it for the first time in a new window
- Close the extension window and open it again
The expected behaviour from what I know would be for the size of the extension popover window to stay consistent.
Orion, OS version; hardware type:
MacOS 12.0.1, iMac 2020
First Open in new window:
What it changes to:
Firefox screenshot (Size never changes):