I'm about a month into my next (interim) role at this point. Mozilla gave people who were laid off a generous severance and recruiters were messaging everyone with a job at Mozilla on LinkedIn from the moment the news broke.
I was part of the August layoffs as well and this rings very true to my experience. Getting laid off was bittersweet - Mozilla has played a huge role in my life for the past 5 years and I care deeply about the people and the mission, but I felt the same relief when I saw the email and my calendar invite.
You should check out Container tabs in Firefox: https://wiki.mozilla.org/Security/Contextual_Identity_Projec.... It's like per-tab profiles, no need for multiple copies of the browser, etc. Totally changed the way I deal with sites I need multiple accounts for (like AWS).