Sounds like containers and potentially adblocking and js blocking prevent this. For my part, I use linked in on my "god dammnit I hate corporate websites so much" browser which is used only for medical bill pay and amazon / wal mart purchases and then monthly bills. Could LinkedIn get something from me there? Potentially, but they're also not really following me around the web. I think given this I'll go install a 3rd browser for linkedin only, or maybe finally just delete my account. It never got me a job and it's a cesspool.
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, shops, etc.) and then you can have a separate profile for everything else.
And each profile can have its own set of extensions.