This is one of many reasons Firefox will always win over Chromium-based browsers.

There's a few problems that continue to persist even after many years however:

1. Stop trying to shove Mozilla VPN down our throat.
2. Sync tells you to sign in despite already being so - just close the extension window and re-open when it gets to that point.
3. Once sync is enabled, it'll pull through all your containers, but it won't remove the default ones. Very annoying.

One of the best extentions

I access isolated networks/labs via SSH SOCKS proxies. This plugin lets me access a particular lab simply by right-clicking on the new tab button and selecting the lab/network that I want to browse in. I wish there was an option or shortcut key (similar to Ctrl+T or Ctrl+Shift+T) to open a new tab in the same container as the current one, but this is still a huge win.

I've experimented with using it to isolate my personal browsing while on my work computer and while I don't know if my cookies are being separated, I'm pretty sure my browsing history is not. Oh well, it's still great for the first use case! :)

This addons is a must. And it would be better if each "New tab" is different for each container.

Really love this add-on.
But why is there no port to Brave (I don't use G-Chrome) or Vivaldi (yes, I use different browsers for different things, like some crypto wallets do not even have an option for Firefox, etc.), but Firefox is my main driver.

one extension to rule them all. serve my multi-browser needs.