AiOS toggle button (FF toolbar) always in pressed state/appearence at startup #140
Description
Starting with ver. 0.7.29 (FF 48.0+) on my system the AiOS toggle button (FF main toolbar) is always in a pressed state at startup (and for all new windows). Since the sidebar is in my case configured to start closed (and it behaves as configured) the startup state is out of sync (button doesn't match sidebar state). It gets in sync as soon as I open/cycle the sidebar for the first time so it's not much of an issue, however still quite noticeable and would require opening the sidebar on all windows to correct it.
This was tested with all other add-ons disabled so it's not an add-on compatibility issue.