The "Personal" container is wrongly highlighted when the "Firefox Multi-Account Containers" panel is opened

[Softvision-MariusComan]

https://bugzilla.mozilla.org/show_bug.cgi?id=1450275

[Affected versions]:

• Firefox Beta 60.0b8
• Firefox Nightly 61.0a1

[Affected Platforms]:

• All Windows
• All Linux

[Prerequisites]:

• Have a Firefox profile with the latest version of the "Firefox Multi-Account Containers" add-on (6.0.0) installed from https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/?src=search.

[Steps to reproduce]:

1. Open the browser with the profile from prerequisites.
2. Click the "Firefox Multi-Account Containers" toolbar button.
3. Observe all the containers from the panel.

[Expected result]:

• No container is highlighted.

[Actual result]:

• The "Personal" container is highlighted.

[Regression Window]:
Last good revision: 5626666b65bb27fe974d42b0997c47ec4e1a1daa
First bad revision: 54679984f078c4158d357c2968e464bb8c01f98b
Pushlog:
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=5626666b65bb27fe974d42b0997c47ec4e1a1daa&tochange=54679984f078c4158d357c2968e464bb8c01f98b

From the pushlog it looks that Bug 1324255 has caused this regression.

[Notes]:

• If the "Enter" key is pressed after the "Firefox Multi-Account Containers" panel was opened, a new "Personal" container will be opened.
• The issue is not reproducible on Mac OS.
• Attached a screen recording of the issue:
  

[kendallcorner]

Hi. We're currently triaging the Multi Account Container issues. This appears to have been fixed, so I'm going to close it. If you don't feel the underlying issue has been resolved, feel free to reopen it with updated steps to reproduce.

[kendallcorner]

Just saw this happen. Doesn't seem to happen every time. Seems to happen when you reopen the popup. When you haven't touched it in a while, it doesn't appear for me, but when i reopen, it's usually there.

edit; a word

[CaviaPorcellus]

I think the new UI fixed this issue.