Breaks "List all tabs" button?

[Lukas Waymann]

I think this code started to break the "List all tabs" button at some point—maybe since Firefox 62. There simply isn't any response when I click the button. I edited userChrome.css to use toolbarbutton#feed-button instead of toolbarbutton#alltabs-button and that seems to fix it.

I don't really know how to debug this any further.

[Haggai Nuchi]

Thanks for the report! I've pushed a fix. (I don't know whether your fix would have introduced other errors on top of fixing the existing problem.)

If it's still broken for you, please re-open this issue.