This is why I have two separate browsers. If you want to do official stuff like paying for things you need to get through cloudflare.
Firefox added profile switching recently. Works good.
(That said, I still keep separate machines. One for doing "official" things, the other for everything else)
You can use Firefox with different profiles and configure it to launch particular profile directly, without launching default profile and using about:profiles.
Firefox with a non-default profile can be created like that:
And you can launch it like that: So, given that /usr/bin/firefox is just a shell script, you can If you use an icon to run firefox (say, /usr/share/applications/firefox.desktop), you'll need to do copy/adjust line for the icon.Of course, "./firefox" from examples above should be replaced with the actual path to executable. For default installation of Firefox the path would be in /usr/bin/firefox script.
So, you can have a separate profiles for something sensitive/invasive (linkedin, cloudflare, shops, banks, etc.) and then you can have a separate profile for everything else.
And each profile can have its own set of extensions.