Just switch for a day. You're making this out to be a much bigger issue than it has the capacity to be.
If this isn't a critical security issue, what is?
My Firefox usage will be so unproductive for few days. I had around 6-8 containers for different purpose, and somehow I'm habitual to using shortcut to launch a container and open whatever I'm supposed to (e.g I've access to 3 different AWS account, and I tend to press shortcut key to launch the relevant container tab)
- Adblocker and Tracker protection without installing extensions.
- Nice background pictures.
- Caching Cdnjs requests -- for some reason Firefox was always hitting the CDN.
To be honest, despite the good work Mozilla does, I don't want to switch back.