Ask HN: Can I launch more than one unique browser executeables?

Can I by some method launch multiple (e.g. Firefox) executeables with independent sessions at the same time? I think it's possible and that Qubes OS, a Linux distro has done it. I currently have around 300+ tabs open across different browser applications (Firefox, Palemoon, Vivaldi, Opera). Mostly all tabs is somehow a valuable and necessary resource for a project. I switch back and forth through working on each project very often, since a lot are related of sorts and so are the webresources; this makes the browser add-ons for tab-sessions a bit annoying. I run Linux btw. Hope someone can be of help! :-)