Add-ons that have a BrowserAction with a Panel aren't displaying the Panel

[n8chz (Lorraine Lee)]

Add-ons that don’t have BrowserActions are behaving normally.

Add-ons that have BrowserActions that don’t have Panels are behaving normally.

Non-panel-based features of add-ons whose BrowserActions open Panels work.

Clicking those BrowserActions that are supposed to display panels has the effect of (visually) toggling (what is apparently) active/inactive state of the button, but no panel appears.

All add-ons that have BrowserActions with panels are affected by this. These include facebook.tracking.exposed, Persistent Highlighter, Archive URL, NoScript, PageSaver WE, Search All Tabs.

[freaktechnik (Martin Giger)]

What version of Firefox are you on (including OS)?

[cleanboybox.funn (cleanboybox.funn@yahoo.com)]

80.0.1
newest version

[caitlin (Caitlin Neiman)]

We’ve seen other reports of add-ons crashing in Firefox 80 but I haven’t seen anything specific to BrowserActions with panels.

@n8chz, can you file a bug so we can look into it?